Home / 66,456,068.80-99,684,103.20-39,134,315.20

Finding the Fourth Proportional to 66,456,068.80, 99,684,103.20 and 39,134,315.20

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Solution

The fourth proportional to 66,456,068.80, 99,684,103.20 and 39,134,315.20 is: 58,701,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456,068.80 : 99,684,103.20 = 39,134,315.20 : x
  2. Step 2: Convert to fraction form
    66,456,068.80/99,684,103.20 = 39,134,315.20/x
  3. Step 3: Cross multiply
    66,456,068.80x = 99,684,103.20 × 39,134,315.20
  4. Step 4: Simplify right side
    66,456,068.80x = 3,901,069,115,058,129
  5. Step 5: Solve for x
    x = 3,901,069,115,058,129/66,456,068.80
  6. Step 6: Final answer
    x = 58,701,472.80

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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.