Home / 130,407,719.78-179,966,969.17-71,672,466.80

Finding the Fourth Proportional to 130,407,719.78, 179,966,969.17 and 71,672,466.80

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Solution

The fourth proportional to 130,407,719.78, 179,966,969.17 and 71,672,466.80 is: 98,910,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,407,719.78 : 179,966,969.17 = 71,672,466.80 : x
  2. Step 2: Convert to fraction form
    130,407,719.78/179,966,969.17 = 71,672,466.80/x
  3. Step 3: Cross multiply
    130,407,719.78x = 179,966,969.17 × 71,672,466.80
  4. Step 4: Simplify right side
    130,407,719.78x = 12,898,676,623,204,184
  5. Step 5: Solve for x
    x = 12,898,676,623,204,184/130,407,719.78
  6. Step 6: Final answer
    x = 98,910,376.20

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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.