Home / 77,705,136.12-107,230,278.96-42,897,080.64

Finding the Fourth Proportional to 77,705,136.12, 107,230,278.96 and 42,897,080.64

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Solution

The fourth proportional to 77,705,136.12, 107,230,278.96 and 42,897,080.64 is: 59,196,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,705,136.12 : 107,230,278.96 = 42,897,080.64 : x
  2. Step 2: Convert to fraction form
    77,705,136.12/107,230,278.96 = 42,897,080.64/x
  3. Step 3: Cross multiply
    77,705,136.12x = 107,230,278.96 × 42,897,080.64
  4. Step 4: Simplify right side
    77,705,136.12x = 4,599,865,923,596,815
  5. Step 5: Solve for x
    x = 4,599,865,923,596,815/77,705,136.12
  6. Step 6: Final answer
    x = 59,196,420.64

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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.