Home / 115,087,487.20-172,347,795.60-54,432,354.40

Finding the Fourth Proportional to 115,087,487.20, 172,347,795.60 and 54,432,354.40

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Solution

The fourth proportional to 115,087,487.20, 172,347,795.60 and 54,432,354.40 is: 81,514,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,087,487.20 : 172,347,795.60 = 54,432,354.40 : x
  2. Step 2: Convert to fraction form
    115,087,487.20/172,347,795.60 = 54,432,354.40/x
  3. Step 3: Cross multiply
    115,087,487.20x = 172,347,795.60 × 54,432,354.40
  4. Step 4: Simplify right side
    115,087,487.20x = 9,381,296,290,157,960
  5. Step 5: Solve for x
    x = 9,381,296,290,157,960/115,087,487.20
  6. Step 6: Final answer
    x = 81,514,476.67

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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.