Home / 99,219,719.40-148,493,655.90-87,126,484.20

Finding the Fourth Proportional to 99,219,719.40, 148,493,655.90 and 87,126,484.20

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Solution

The fourth proportional to 99,219,719.40, 148,493,655.90 and 87,126,484.20 is: 130,394,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,219,719.40 : 148,493,655.90 = 87,126,484.20 : x
  2. Step 2: Convert to fraction form
    99,219,719.40/148,493,655.90 = 87,126,484.20/x
  3. Step 3: Cross multiply
    99,219,719.40x = 148,493,655.90 × 87,126,484.20
  4. Step 4: Simplify right side
    99,219,719.40x = 12,937,730,164,571,588
  5. Step 5: Solve for x
    x = 12,937,730,164,571,588/99,219,719.40
  6. Step 6: Final answer
    x = 130,394,746.56

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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.