Home / 156,758,671.76-216,007,936.80-121,260,821.90

Finding the Fourth Proportional to 156,758,671.76, 216,007,936.80 and 121,260,821.90

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Solution

The fourth proportional to 156,758,671.76, 216,007,936.80 and 121,260,821.90 is: 167,093,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,758,671.76 : 216,007,936.80 = 121,260,821.90 : x
  2. Step 2: Convert to fraction form
    156,758,671.76/216,007,936.80 = 121,260,821.90/x
  3. Step 3: Cross multiply
    156,758,671.76x = 216,007,936.80 × 121,260,821.90
  4. Step 4: Simplify right side
    156,758,671.76x = 26,193,299,953,291,260
  5. Step 5: Solve for x
    x = 26,193,299,953,291,260/156,758,671.76
  6. Step 6: Final answer
    x = 167,093,148.08

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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.