Home / 458,602,673.56-687,852,495.10-126,656,874.04

Finding the Fourth Proportional to 458,602,673.56, 687,852,495.10 and 126,656,874.04

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Solution

The fourth proportional to 458,602,673.56, 687,852,495.10 and 126,656,874.04 is: 189,971,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,602,673.56 : 687,852,495.10 = 126,656,874.04 : x
  2. Step 2: Convert to fraction form
    458,602,673.56/687,852,495.10 = 126,656,874.04/x
  3. Step 3: Cross multiply
    458,602,673.56x = 687,852,495.10 × 126,656,874.04
  4. Step 4: Simplify right side
    458,602,673.56x = 87,121,246,829,980,432
  5. Step 5: Solve for x
    x = 87,121,246,829,980,432/458,602,673.56
  6. Step 6: Final answer
    x = 189,971,083.58

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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.