Home / 66,429,687.20-99,644,530.80-59,711,223.20

Finding the Fourth Proportional to 66,429,687.20, 99,644,530.80 and 59,711,223.20

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Solution

The fourth proportional to 66,429,687.20, 99,644,530.80 and 59,711,223.20 is: 89,566,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,687.20 : 99,644,530.80 = 59,711,223.20 : x
  2. Step 2: Convert to fraction form
    66,429,687.20/99,644,530.80 = 59,711,223.20/x
  3. Step 3: Cross multiply
    66,429,687.20x = 99,644,530.80 × 59,711,223.20
  4. Step 4: Simplify right side
    66,429,687.20x = 5,949,896,819,258,075
  5. Step 5: Solve for x
    x = 5,949,896,819,258,075/66,429,687.20
  6. Step 6: Final answer
    x = 89,566,834.80

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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.