Home / 64,591,732.80-89,136,871.20-38,499,364.80

Finding the Fourth Proportional to 64,591,732.80, 89,136,871.20 and 38,499,364.80

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Solution

The fourth proportional to 64,591,732.80, 89,136,871.20 and 38,499,364.80 is: 53,129,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,591,732.80 : 89,136,871.20 = 38,499,364.80 : x
  2. Step 2: Convert to fraction form
    64,591,732.80/89,136,871.20 = 38,499,364.80/x
  3. Step 3: Cross multiply
    64,591,732.80x = 89,136,871.20 × 38,499,364.80
  4. Step 4: Simplify right side
    64,591,732.80x = 3,431,712,921,459,413.50
  5. Step 5: Solve for x
    x = 3,431,712,921,459,413.50/64,591,732.80
  6. Step 6: Final answer
    x = 53,129,290.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.