Home / 86,445,522.31-129,677,364.75-28,157,742.59

Finding the Fourth Proportional to 86,445,522.31, 129,677,364.75 and 28,157,742.59

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Solution

The fourth proportional to 86,445,522.31, 129,677,364.75 and 28,157,742.59 is: 42,239,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,445,522.31 : 129,677,364.75 = 28,157,742.59 : x
  2. Step 2: Convert to fraction form
    86,445,522.31/129,677,364.75 = 28,157,742.59/x
  3. Step 3: Cross multiply
    86,445,522.31x = 129,677,364.75 × 28,157,742.59
  4. Step 4: Simplify right side
    86,445,522.31x = 3,651,421,856,380,039.50
  5. Step 5: Solve for x
    x = 3,651,421,856,380,039.50/86,445,522.31
  6. Step 6: Final answer
    x = 42,239,571.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.