Home / 83,780,897.80-125,671,346.70-77,734,280.20

Finding the Fourth Proportional to 83,780,897.80, 125,671,346.70 and 77,734,280.20

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Solution

The fourth proportional to 83,780,897.80, 125,671,346.70 and 77,734,280.20 is: 116,601,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,780,897.80 : 125,671,346.70 = 77,734,280.20 : x
  2. Step 2: Convert to fraction form
    83,780,897.80/125,671,346.70 = 77,734,280.20/x
  3. Step 3: Cross multiply
    83,780,897.80x = 125,671,346.70 × 77,734,280.20
  4. Step 4: Simplify right side
    83,780,897.80x = 9,768,971,677,489,146
  5. Step 5: Solve for x
    x = 9,768,971,677,489,146/83,780,897.80
  6. Step 6: Final answer
    x = 116,601,420.30

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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.