Home / 137,656,775.76-189,968,766.84-74,934,677.04

Finding the Fourth Proportional to 137,656,775.76, 189,968,766.84 and 74,934,677.04

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Solution

The fourth proportional to 137,656,775.76, 189,968,766.84 and 74,934,677.04 is: 103,411,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,656,775.76 : 189,968,766.84 = 74,934,677.04 : x
  2. Step 2: Convert to fraction form
    137,656,775.76/189,968,766.84 = 74,934,677.04/x
  3. Step 3: Cross multiply
    137,656,775.76x = 189,968,766.84 × 74,934,677.04
  4. Step 4: Simplify right side
    137,656,775.76x = 14,235,248,190,842,462
  5. Step 5: Solve for x
    x = 14,235,248,190,842,462/137,656,775.76
  6. Step 6: Final answer
    x = 103,411,169.64

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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.