Home / 66,430,428.70-99,645,643.05-60,372,001.30

Finding the Fourth Proportional to 66,430,428.70, 99,645,643.05 and 60,372,001.30

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Solution

The fourth proportional to 66,430,428.70, 99,645,643.05 and 60,372,001.30 is: 90,558,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,428.70 : 99,645,643.05 = 60,372,001.30 : x
  2. Step 2: Convert to fraction form
    66,430,428.70/99,645,643.05 = 60,372,001.30/x
  3. Step 3: Cross multiply
    66,430,428.70x = 99,645,643.05 × 60,372,001.30
  4. Step 4: Simplify right side
    66,430,428.70x = 6,015,806,891,753,935
  5. Step 5: Solve for x
    x = 6,015,806,891,753,935/66,430,428.70
  6. Step 6: Final answer
    x = 90,558,001.95

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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.