Home / 1,278,179,547.40-1,917,269,321.10-1,019,899,221.40

Finding the Fourth Proportional to 1,278,179,547.40, 1,917,269,321.10 and 1,019,899,221.40

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Solution

The fourth proportional to 1,278,179,547.40, 1,917,269,321.10 and 1,019,899,221.40 is: 1,529,848,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,179,547.40 : 1,917,269,321.10 = 1,019,899,221.40 : x
  2. Step 2: Convert to fraction form
    1,278,179,547.40/1,917,269,321.10 = 1,019,899,221.40/x
  3. Step 3: Cross multiply
    1,278,179,547.40x = 1,917,269,321.10 × 1,019,899,221.40
  4. Step 4: Simplify right side
    1,278,179,547.40x = 1,955,421,487,803,996,416
  5. Step 5: Solve for x
    x = 1,955,421,487,803,996,416/1,278,179,547.40
  6. Step 6: Final answer
    x = 1,529,848,832.10

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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.