Home / 115,309,270.98-158,932,861.02-87,422,746.50

Finding the Fourth Proportional to 115,309,270.98, 158,932,861.02 and 87,422,746.50

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Solution

The fourth proportional to 115,309,270.98, 158,932,861.02 and 87,422,746.50 is: 120,496,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,309,270.98 : 158,932,861.02 = 87,422,746.50 : x
  2. Step 2: Convert to fraction form
    115,309,270.98/158,932,861.02 = 87,422,746.50/x
  3. Step 3: Cross multiply
    115,309,270.98x = 158,932,861.02 × 87,422,746.50
  4. Step 4: Simplify right side
    115,309,270.98x = 13,894,347,219,471,192
  5. Step 5: Solve for x
    x = 13,894,347,219,471,192/115,309,270.98
  6. Step 6: Final answer
    x = 120,496,358.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.