Home / 66,506,726.40-99,760,089.60-39,296,947.20

Finding the Fourth Proportional to 66,506,726.40, 99,760,089.60 and 39,296,947.20

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Solution

The fourth proportional to 66,506,726.40, 99,760,089.60 and 39,296,947.20 is: 58,945,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506,726.40 : 99,760,089.60 = 39,296,947.20 : x
  2. Step 2: Convert to fraction form
    66,506,726.40/99,760,089.60 = 39,296,947.20/x
  3. Step 3: Cross multiply
    66,506,726.40x = 99,760,089.60 × 39,296,947.20
  4. Step 4: Simplify right side
    66,506,726.40x = 3,920,266,973,678,469
  5. Step 5: Solve for x
    x = 3,920,266,973,678,469/66,506,726.40
  6. Step 6: Final answer
    x = 58,945,420.80

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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.