Home / 145,215,069.34-200,390,964.76-79,134,159.18

Finding the Fourth Proportional to 145,215,069.34, 200,390,964.76 and 79,134,159.18

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Solution

The fourth proportional to 145,215,069.34, 200,390,964.76 and 79,134,159.18 is: 109,201,962.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,215,069.34 : 200,390,964.76 = 79,134,159.18 : x
  2. Step 2: Convert to fraction form
    145,215,069.34/200,390,964.76 = 79,134,159.18/x
  3. Step 3: Cross multiply
    145,215,069.34x = 200,390,964.76 × 79,134,159.18
  4. Step 4: Simplify right side
    145,215,069.34x = 15,857,770,503,551,612
  5. Step 5: Solve for x
    x = 15,857,770,503,551,612/145,215,069.34
  6. Step 6: Final answer
    x = 109,201,962.14

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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.