Home / 66,429,420.30-99,644,130.45-39,107,666.70

Finding the Fourth Proportional to 66,429,420.30, 99,644,130.45 and 39,107,666.70

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Solution

The fourth proportional to 66,429,420.30, 99,644,130.45 and 39,107,666.70 is: 58,661,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,420.30 : 99,644,130.45 = 39,107,666.70 : x
  2. Step 2: Convert to fraction form
    66,429,420.30/99,644,130.45 = 39,107,666.70/x
  3. Step 3: Cross multiply
    66,429,420.30x = 99,644,130.45 × 39,107,666.70
  4. Step 4: Simplify right side
    66,429,420.30x = 3,896,849,442,249,921.50
  5. Step 5: Solve for x
    x = 3,896,849,442,249,921.50/66,429,420.30
  6. Step 6: Final answer
    x = 58,661,500.05

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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.