Home / 77,818,853.56-107,390,440.11-42,536,706.07

Finding the Fourth Proportional to 77,818,853.56, 107,390,440.11 and 42,536,706.07

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Solution

The fourth proportional to 77,818,853.56, 107,390,440.11 and 42,536,706.07 is: 58,700,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,818,853.56 : 107,390,440.11 = 42,536,706.07 : x
  2. Step 2: Convert to fraction form
    77,818,853.56/107,390,440.11 = 42,536,706.07/x
  3. Step 3: Cross multiply
    77,818,853.56x = 107,390,440.11 × 42,536,706.07
  4. Step 4: Simplify right side
    77,818,853.56x = 4,568,035,585,687,008
  5. Step 5: Solve for x
    x = 4,568,035,585,687,008/77,818,853.56
  6. Step 6: Final answer
    x = 58,700,885.15

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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.