Home / 120,966,616.80-181,449,925.20-69,948,280.80

Finding the Fourth Proportional to 120,966,616.80, 181,449,925.20 and 69,948,280.80

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Solution

The fourth proportional to 120,966,616.80, 181,449,925.20 and 69,948,280.80 is: 104,922,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,966,616.80 : 181,449,925.20 = 69,948,280.80 : x
  2. Step 2: Convert to fraction form
    120,966,616.80/181,449,925.20 = 69,948,280.80/x
  3. Step 3: Cross multiply
    120,966,616.80x = 181,449,925.20 × 69,948,280.80
  4. Step 4: Simplify right side
    120,966,616.80x = 12,692,110,319,028,594
  5. Step 5: Solve for x
    x = 12,692,110,319,028,594/120,966,616.80
  6. Step 6: Final answer
    x = 104,922,421.20

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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.