Home / 315,561,787.45-435,466,913.20-176,333,693.29

Finding the Fourth Proportional to 315,561,787.45, 435,466,913.20 and 176,333,693.29

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Solution

The fourth proportional to 315,561,787.45, 435,466,913.20 and 176,333,693.29 is: 243,335,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,561,787.45 : 435,466,913.20 = 176,333,693.29 : x
  2. Step 2: Convert to fraction form
    315,561,787.45/435,466,913.20 = 176,333,693.29/x
  3. Step 3: Cross multiply
    315,561,787.45x = 435,466,913.20 × 176,333,693.29
  4. Step 4: Simplify right side
    315,561,787.45x = 76,787,489,110,151,840
  5. Step 5: Solve for x
    x = 76,787,489,110,151,840/315,561,787.45
  6. Step 6: Final answer
    x = 243,335,828.87

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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.