Home / 76,658,461.20-114,945,701.40-31,168,861.20

Finding the Fourth Proportional to 76,658,461.20, 114,945,701.40 and 31,168,861.20

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Solution

The fourth proportional to 76,658,461.20, 114,945,701.40 and 31,168,861.20 is: 46,736,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,658,461.20 : 114,945,701.40 = 31,168,861.20 : x
  2. Step 2: Convert to fraction form
    76,658,461.20/114,945,701.40 = 31,168,861.20/x
  3. Step 3: Cross multiply
    76,658,461.20x = 114,945,701.40 × 31,168,861.20
  4. Step 4: Simplify right side
    76,658,461.20x = 3,582,726,612,473,246
  5. Step 5: Solve for x
    x = 3,582,726,612,473,246/76,658,461.20
  6. Step 6: Final answer
    x = 46,736,218.76

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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.