Home / 137,656,776.76-189,968,768.22-74,934,678.04

Finding the Fourth Proportional to 137,656,776.76, 189,968,768.22 and 74,934,678.04

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Solution

The fourth proportional to 137,656,776.76, 189,968,768.22 and 74,934,678.04 is: 103,411,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,656,776.76 : 189,968,768.22 = 74,934,678.04 : x
  2. Step 2: Convert to fraction form
    137,656,776.76/189,968,768.22 = 74,934,678.04/x
  3. Step 3: Cross multiply
    137,656,776.76x = 189,968,768.22 × 74,934,678.04
  4. Step 4: Simplify right side
    137,656,776.76x = 14,235,248,484,221,086
  5. Step 5: Solve for x
    x = 14,235,248,484,221,086/137,656,776.76
  6. Step 6: Final answer
    x = 103,411,171.02

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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.