Home / 156,749,162.94-216,287,697.96-87,125,077.53

Finding the Fourth Proportional to 156,749,162.94, 216,287,697.96 and 87,125,077.53

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Solution

The fourth proportional to 156,749,162.94, 216,287,697.96 and 87,125,077.53 is: 120,218,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,749,162.94 : 216,287,697.96 = 87,125,077.53 : x
  2. Step 2: Convert to fraction form
    156,749,162.94/216,287,697.96 = 87,125,077.53/x
  3. Step 3: Cross multiply
    156,749,162.94x = 216,287,697.96 × 87,125,077.53
  4. Step 4: Simplify right side
    156,749,162.94x = 18,844,082,453,550,224
  5. Step 5: Solve for x
    x = 18,844,082,453,550,224/156,749,162.94
  6. Step 6: Final answer
    x = 120,218,073.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.