Home / 78,205,200.90-107,925,654.66-45,164,849.64

Finding the Fourth Proportional to 78,205,200.90, 107,925,654.66 and 45,164,849.64

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Solution

The fourth proportional to 78,205,200.90, 107,925,654.66 and 45,164,849.64 is: 62,328,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,205,200.90 : 107,925,654.66 = 45,164,849.64 : x
  2. Step 2: Convert to fraction form
    78,205,200.90/107,925,654.66 = 45,164,849.64/x
  3. Step 3: Cross multiply
    78,205,200.90x = 107,925,654.66 × 45,164,849.64
  4. Step 4: Simplify right side
    78,205,200.90x = 4,874,445,965,017,465
  5. Step 5: Solve for x
    x = 4,874,445,965,017,465/78,205,200.90
  6. Step 6: Final answer
    x = 62,328,923.25

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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.