Home / 73,152,605.20-109,728,907.80-66,434,141.20

Finding the Fourth Proportional to 73,152,605.20, 109,728,907.80 and 66,434,141.20

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Solution

The fourth proportional to 73,152,605.20, 109,728,907.80 and 66,434,141.20 is: 99,651,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,152,605.20 : 109,728,907.80 = 66,434,141.20 : x
  2. Step 2: Convert to fraction form
    73,152,605.20/109,728,907.80 = 66,434,141.20/x
  3. Step 3: Cross multiply
    73,152,605.20x = 109,728,907.80 × 66,434,141.20
  4. Step 4: Simplify right side
    73,152,605.20x = 7,289,745,754,506,981
  5. Step 5: Solve for x
    x = 7,289,745,754,506,981/73,152,605.20
  6. Step 6: Final answer
    x = 99,651,211.80

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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.