Home / 312,112,456.20-468,026,966.70-117,959,344.20

Finding the Fourth Proportional to 312,112,456.20, 468,026,966.70 and 117,959,344.20

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Solution

The fourth proportional to 312,112,456.20, 468,026,966.70 and 117,959,344.20 is: 176,885,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,112,456.20 : 468,026,966.70 = 117,959,344.20 : x
  2. Step 2: Convert to fraction form
    312,112,456.20/468,026,966.70 = 117,959,344.20/x
  3. Step 3: Cross multiply
    312,112,456.20x = 468,026,966.70 × 117,959,344.20
  4. Step 4: Simplify right side
    312,112,456.20x = 55,208,154,059,847,240
  5. Step 5: Solve for x
    x = 55,208,154,059,847,240/312,112,456.20
  6. Step 6: Final answer
    x = 176,885,455.75

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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.