Home / 123,742,207.80-185,613,311.70-121,829,020.20

Finding the Fourth Proportional to 123,742,207.80, 185,613,311.70 and 121,829,020.20

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Solution

The fourth proportional to 123,742,207.80, 185,613,311.70 and 121,829,020.20 is: 182,743,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,742,207.80 : 185,613,311.70 = 121,829,020.20 : x
  2. Step 2: Convert to fraction form
    123,742,207.80/185,613,311.70 = 121,829,020.20/x
  3. Step 3: Cross multiply
    123,742,207.80x = 185,613,311.70 × 121,829,020.20
  4. Step 4: Simplify right side
    123,742,207.80x = 22,613,087,900,488,196
  5. Step 5: Solve for x
    x = 22,613,087,900,488,196/123,742,207.80
  6. Step 6: Final answer
    x = 182,743,530.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.