Home / 66,414,429.20-99,663,634.20-39,120,669.20

Finding the Fourth Proportional to 66,414,429.20, 99,663,634.20 and 39,120,669.20

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Solution

The fourth proportional to 66,414,429.20, 99,663,634.20 and 39,120,669.20 is: 58,705,737.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414,429.20 : 99,663,634.20 = 39,120,669.20 : x
  2. Step 2: Convert to fraction form
    66,414,429.20/99,663,634.20 = 39,120,669.20/x
  3. Step 3: Cross multiply
    66,414,429.20x = 99,663,634.20 × 39,120,669.20
  4. Step 4: Simplify right side
    66,414,429.20x = 3,898,908,064,808,007
  5. Step 5: Solve for x
    x = 3,898,908,064,808,007/66,414,429.20
  6. Step 6: Final answer
    x = 58,705,737.77

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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.