Home / 77,705,134.12-107,230,276.20-42,897,078.64

Finding the Fourth Proportional to 77,705,134.12, 107,230,276.20 and 42,897,078.64

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Solution

The fourth proportional to 77,705,134.12, 107,230,276.20 and 42,897,078.64 is: 59,196,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,705,134.12 : 107,230,276.20 = 42,897,078.64 : x
  2. Step 2: Convert to fraction form
    77,705,134.12/107,230,276.20 = 42,897,078.64/x
  3. Step 3: Cross multiply
    77,705,134.12x = 107,230,276.20 × 42,897,078.64
  4. Step 4: Simplify right side
    77,705,134.12x = 4,599,865,590,740,321
  5. Step 5: Solve for x
    x = 4,599,865,590,740,321/77,705,134.12
  6. Step 6: Final answer
    x = 59,196,417.88

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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.