Home / 145,239,892.88-200,435,252.78-79,164,670.82

Finding the Fourth Proportional to 145,239,892.88, 200,435,252.78 and 79,164,670.82

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Solution

The fourth proportional to 145,239,892.88, 200,435,252.78 and 79,164,670.82 is: 109,249,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,239,892.88 : 200,435,252.78 = 79,164,670.82 : x
  2. Step 2: Convert to fraction form
    145,239,892.88/200,435,252.78 = 79,164,670.82/x
  3. Step 3: Cross multiply
    145,239,892.88x = 200,435,252.78 × 79,164,670.82
  4. Step 4: Simplify right side
    145,239,892.88x = 15,867,390,806,247,924
  5. Step 5: Solve for x
    x = 15,867,390,806,247,924/145,239,892.88
  6. Step 6: Final answer
    x = 109,249,535.32

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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.