Home / 987,561,112.80-1,480,669,822.80-470,239,384.80

Finding the Fourth Proportional to 987,561,112.80, 1,480,669,822.80 and 470,239,384.80

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Solution

The fourth proportional to 987,561,112.80, 1,480,669,822.80 and 470,239,384.80 is: 705,039,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,561,112.80 : 1,480,669,822.80 = 470,239,384.80 : x
  2. Step 2: Convert to fraction form
    987,561,112.80/1,480,669,822.80 = 470,239,384.80/x
  3. Step 3: Cross multiply
    987,561,112.80x = 1,480,669,822.80 × 470,239,384.80
  4. Step 4: Simplify right side
    987,561,112.80x = 696,269,266,565,396,992
  5. Step 5: Solve for x
    x = 696,269,266,565,396,992/987,561,112.80
  6. Step 6: Final answer
    x = 705,039,169.26

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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.