Home / 52,507,401.20-78,761,101.80-45,429,513.20

Finding the Fourth Proportional to 52,507,401.20, 78,761,101.80 and 45,429,513.20

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Solution

The fourth proportional to 52,507,401.20, 78,761,101.80 and 45,429,513.20 is: 68,144,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,507,401.20 : 78,761,101.80 = 45,429,513.20 : x
  2. Step 2: Convert to fraction form
    52,507,401.20/78,761,101.80 = 45,429,513.20/x
  3. Step 3: Cross multiply
    52,507,401.20x = 78,761,101.80 × 45,429,513.20
  4. Step 4: Simplify right side
    52,507,401.20x = 3,578,078,513,869,644
  5. Step 5: Solve for x
    x = 3,578,078,513,869,644/52,507,401.20
  6. Step 6: Final answer
    x = 68,144,269.80

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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.