Home / 1,345,478,315.70-2,018,217,473.55-1,322,803,499.70

Finding the Fourth Proportional to 1,345,478,315.70, 2,018,217,473.55 and 1,322,803,499.70

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Solution

The fourth proportional to 1,345,478,315.70, 2,018,217,473.55 and 1,322,803,499.70 is: 1,984,205,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,478,315.70 : 2,018,217,473.55 = 1,322,803,499.70 : x
  2. Step 2: Convert to fraction form
    1,345,478,315.70/2,018,217,473.55 = 1,322,803,499.70/x
  3. Step 3: Cross multiply
    1,345,478,315.70x = 2,018,217,473.55 × 1,322,803,499.70
  4. Step 4: Simplify right side
    1,345,478,315.70x = 2,669,705,137,167,632,384
  5. Step 5: Solve for x
    x = 2,669,705,137,167,632,384/1,345,478,315.70
  6. Step 6: Final answer
    x = 1,984,205,249.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.