Home / 137,648,882.52-189,960,473.79-74,921,949.93

Finding the Fourth Proportional to 137,648,882.52, 189,960,473.79 and 74,921,949.93

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Solution

The fourth proportional to 137,648,882.52, 189,960,473.79 and 74,921,949.93 is: 103,395,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,648,882.52 : 189,960,473.79 = 74,921,949.93 : x
  2. Step 2: Convert to fraction form
    137,648,882.52/189,960,473.79 = 74,921,949.93/x
  3. Step 3: Cross multiply
    137,648,882.52x = 189,960,473.79 × 74,921,949.93
  4. Step 4: Simplify right side
    137,648,882.52x = 14,232,209,105,973,458
  5. Step 5: Solve for x
    x = 14,232,209,105,973,458/137,648,882.52
  6. Step 6: Final answer
    x = 103,395,021.05

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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.