Home / 145,215,068.60-200,390,963.73-79,134,158.43

Finding the Fourth Proportional to 145,215,068.60, 200,390,963.73 and 79,134,158.43

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Solution

The fourth proportional to 145,215,068.60, 200,390,963.73 and 79,134,158.43 is: 109,201,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,215,068.60 : 200,390,963.73 = 79,134,158.43 : x
  2. Step 2: Convert to fraction form
    145,215,068.60/200,390,963.73 = 79,134,158.43/x
  3. Step 3: Cross multiply
    145,215,068.60x = 200,390,963.73 × 79,134,158.43
  4. Step 4: Simplify right side
    145,215,068.60x = 15,857,770,271,750,204
  5. Step 5: Solve for x
    x = 15,857,770,271,750,204/145,215,068.60
  6. Step 6: Final answer
    x = 109,201,961.10

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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.