Home / 156,712,140.20-235,068,210.30-139,990,629.80

Finding the Fourth Proportional to 156,712,140.20, 235,068,210.30 and 139,990,629.80

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Solution

The fourth proportional to 156,712,140.20, 235,068,210.30 and 139,990,629.80 is: 209,985,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,712,140.20 : 235,068,210.30 = 139,990,629.80 : x
  2. Step 2: Convert to fraction form
    156,712,140.20/235,068,210.30 = 139,990,629.80/x
  3. Step 3: Cross multiply
    156,712,140.20x = 235,068,210.30 × 139,990,629.80
  4. Step 4: Simplify right side
    156,712,140.20x = 32,907,346,805,855,852
  5. Step 5: Solve for x
    x = 32,907,346,805,855,852/156,712,140.20
  6. Step 6: Final answer
    x = 209,985,944.70

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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.