Home / 156,712,129.20-235,068,193.80-139,990,618.80

Finding the Fourth Proportional to 156,712,129.20, 235,068,193.80 and 139,990,618.80

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Solution

The fourth proportional to 156,712,129.20, 235,068,193.80 and 139,990,618.80 is: 209,985,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,712,129.20 : 235,068,193.80 = 139,990,618.80 : x
  2. Step 2: Convert to fraction form
    156,712,129.20/235,068,193.80 = 139,990,618.80/x
  3. Step 3: Cross multiply
    156,712,129.20x = 235,068,193.80 × 139,990,618.80
  4. Step 4: Simplify right side
    156,712,129.20x = 32,907,341,910,260,328
  5. Step 5: Solve for x
    x = 32,907,341,910,260,328/156,712,129.20
  6. Step 6: Final answer
    x = 209,985,928.20

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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.