Home / 86,445,521.56-129,677,363.63-28,157,741.84

Finding the Fourth Proportional to 86,445,521.56, 129,677,363.63 and 28,157,741.84

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Solution

The fourth proportional to 86,445,521.56, 129,677,363.63 and 28,157,741.84 is: 42,239,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,445,521.56 : 129,677,363.63 = 28,157,741.84 : x
  2. Step 2: Convert to fraction form
    86,445,521.56/129,677,363.63 = 28,157,741.84/x
  3. Step 3: Cross multiply
    86,445,521.56x = 129,677,363.63 × 28,157,741.84
  4. Step 4: Simplify right side
    86,445,521.56x = 3,651,421,727,514,951
  5. Step 5: Solve for x
    x = 3,651,421,727,514,951/86,445,521.56
  6. Step 6: Final answer
    x = 42,239,570.79

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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.