Home / 85,566,472.20-128,349,708.30-51,554,248.20

Finding the Fourth Proportional to 85,566,472.20, 128,349,708.30 and 51,554,248.20

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Solution

The fourth proportional to 85,566,472.20, 128,349,708.30 and 51,554,248.20 is: 77,331,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,566,472.20 : 128,349,708.30 = 51,554,248.20 : x
  2. Step 2: Convert to fraction form
    85,566,472.20/128,349,708.30 = 51,554,248.20/x
  3. Step 3: Cross multiply
    85,566,472.20x = 128,349,708.30 × 51,554,248.20
  4. Step 4: Simplify right side
    85,566,472.20x = 6,616,972,718,095,800
  5. Step 5: Solve for x
    x = 6,616,972,718,095,800/85,566,472.20
  6. Step 6: Final answer
    x = 77,331,372.30

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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.