Home / 86,445,521.31-129,677,363.25-28,157,741.59

Finding the Fourth Proportional to 86,445,521.31, 129,677,363.25 and 28,157,741.59

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Solution

The fourth proportional to 86,445,521.31, 129,677,363.25 and 28,157,741.59 is: 42,239,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,445,521.31 : 129,677,363.25 = 28,157,741.59 : x
  2. Step 2: Convert to fraction form
    86,445,521.31/129,677,363.25 = 28,157,741.59/x
  3. Step 3: Cross multiply
    86,445,521.31x = 129,677,363.25 × 28,157,741.59
  4. Step 4: Simplify right side
    86,445,521.31x = 3,651,421,684,437,799
  5. Step 5: Solve for x
    x = 3,651,421,684,437,799/86,445,521.31
  6. Step 6: Final answer
    x = 42,239,570.42

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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.