Home / 87,228,001.70-130,842,002.55-86,630,804.90

Finding the Fourth Proportional to 87,228,001.70, 130,842,002.55 and 86,630,804.90

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Solution

The fourth proportional to 87,228,001.70, 130,842,002.55 and 86,630,804.90 is: 129,946,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,228,001.70 : 130,842,002.55 = 86,630,804.90 : x
  2. Step 2: Convert to fraction form
    87,228,001.70/130,842,002.55 = 86,630,804.90/x
  3. Step 3: Cross multiply
    87,228,001.70x = 130,842,002.55 × 86,630,804.90
  4. Step 4: Simplify right side
    87,228,001.70x = 11,334,947,995,634,354
  5. Step 5: Solve for x
    x = 11,334,947,995,634,354/87,228,001.70
  6. Step 6: Final answer
    x = 129,946,207.35

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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.