Home / 131,779,968.80-197,577,793.20-77,899,546.40

Finding the Fourth Proportional to 131,779,968.80, 197,577,793.20 and 77,899,546.40

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Solution

The fourth proportional to 131,779,968.80, 197,577,793.20 and 77,899,546.40 is: 116,794,840.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,779,968.80 : 197,577,793.20 = 77,899,546.40 : x
  2. Step 2: Convert to fraction form
    131,779,968.80/197,577,793.20 = 77,899,546.40/x
  3. Step 3: Cross multiply
    131,779,968.80x = 197,577,793.20 × 77,899,546.40
  4. Step 4: Simplify right side
    131,779,968.80x = 15,391,220,468,993,004
  5. Step 5: Solve for x
    x = 15,391,220,468,993,004/131,779,968.80
  6. Step 6: Final answer
    x = 116,794,840.74

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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.