Home / 85,866,114.69-128,731,433.45-42,711,764.13

Finding the Fourth Proportional to 85,866,114.69, 128,731,433.45 and 42,711,764.13

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Solution

The fourth proportional to 85,866,114.69, 128,731,433.45 and 42,711,764.13 is: 64,033,951.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,866,114.69 : 128,731,433.45 = 42,711,764.13 : x
  2. Step 2: Convert to fraction form
    85,866,114.69/128,731,433.45 = 42,711,764.13/x
  3. Step 3: Cross multiply
    85,866,114.69x = 128,731,433.45 × 42,711,764.13
  4. Step 4: Simplify right side
    85,866,114.69x = 5,498,346,621,419,633
  5. Step 5: Solve for x
    x = 5,498,346,621,419,633/85,866,114.69
  6. Step 6: Final answer
    x = 64,033,951.48

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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.