Home / 66,466,213.10-99,689,988.45-21,032,600.30

Finding the Fourth Proportional to 66,466,213.10, 99,689,988.45 and 21,032,600.30

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Solution

The fourth proportional to 66,466,213.10, 99,689,988.45 and 21,032,600.30 is: 31,545,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,466,213.10 : 99,689,988.45 = 21,032,600.30 : x
  2. Step 2: Convert to fraction form
    66,466,213.10/99,689,988.45 = 21,032,600.30/x
  3. Step 3: Cross multiply
    66,466,213.10x = 99,689,988.45 × 21,032,600.30
  4. Step 4: Simplify right side
    66,466,213.10x = 2,096,739,680,980,466.75
  5. Step 5: Solve for x
    x = 2,096,739,680,980,466.75/66,466,213.10
  6. Step 6: Final answer
    x = 31,545,947.68

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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.