Home / 323,407,680.40-485,111,520.60-129,412,032.40

Finding the Fourth Proportional to 323,407,680.40, 485,111,520.60 and 129,412,032.40

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Solution

The fourth proportional to 323,407,680.40, 485,111,520.60 and 129,412,032.40 is: 194,118,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,407,680.40 : 485,111,520.60 = 129,412,032.40 : x
  2. Step 2: Convert to fraction form
    323,407,680.40/485,111,520.60 = 129,412,032.40/x
  3. Step 3: Cross multiply
    323,407,680.40x = 485,111,520.60 × 129,412,032.40
  4. Step 4: Simplify right side
    323,407,680.40x = 62,779,267,821,500,472
  5. Step 5: Solve for x
    x = 62,779,267,821,500,472/323,407,680.40
  6. Step 6: Final answer
    x = 194,118,048.60

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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.