Home / 83,712,731.18-115,530,040.05-50,223,470.55

Finding the Fourth Proportional to 83,712,731.18, 115,530,040.05 and 50,223,470.55

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Solution

The fourth proportional to 83,712,731.18, 115,530,040.05 and 50,223,470.55 is: 69,312,271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,712,731.18 : 115,530,040.05 = 50,223,470.55 : x
  2. Step 2: Convert to fraction form
    83,712,731.18/115,530,040.05 = 50,223,470.55/x
  3. Step 3: Cross multiply
    83,712,731.18x = 115,530,040.05 × 50,223,470.55
  4. Step 4: Simplify right side
    83,712,731.18x = 5,802,319,564,091,495
  5. Step 5: Solve for x
    x = 5,802,319,564,091,495/83,712,731.18
  6. Step 6: Final answer
    x = 69,312,271.65

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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.