Home / 156,970,430.90-235,539,627.15-66,103,205.30

Finding the Fourth Proportional to 156,970,430.90, 235,539,627.15 and 66,103,205.30

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Solution

The fourth proportional to 156,970,430.90, 235,539,627.15 and 66,103,205.30 is: 99,190,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,970,430.90 : 235,539,627.15 = 66,103,205.30 : x
  2. Step 2: Convert to fraction form
    156,970,430.90/235,539,627.15 = 66,103,205.30/x
  3. Step 3: Cross multiply
    156,970,430.90x = 235,539,627.15 × 66,103,205.30
  4. Step 4: Simplify right side
    156,970,430.90x = 15,569,924,329,781,904
  5. Step 5: Solve for x
    x = 15,569,924,329,781,904/156,970,430.90
  6. Step 6: Final answer
    x = 99,190,173.85

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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.