Home / 77,357,381.76-106,750,959.84-42,550,070.40

Finding the Fourth Proportional to 77,357,381.76, 106,750,959.84 and 42,550,070.40

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Solution

The fourth proportional to 77,357,381.76, 106,750,959.84 and 42,550,070.40 is: 58,717,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,357,381.76 : 106,750,959.84 = 42,550,070.40 : x
  2. Step 2: Convert to fraction form
    77,357,381.76/106,750,959.84 = 42,550,070.40/x
  3. Step 3: Cross multiply
    77,357,381.76x = 106,750,959.84 × 42,550,070.40
  4. Step 4: Simplify right side
    77,357,381.76x = 4,542,260,856,459,573
  5. Step 5: Solve for x
    x = 4,542,260,856,459,573/77,357,381.76
  6. Step 6: Final answer
    x = 58,717,872.21

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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.