Home / 339,980,430.30-510,096,616.65-135,655,143.90

Finding the Fourth Proportional to 339,980,430.30, 510,096,616.65 and 135,655,143.90

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Solution

The fourth proportional to 339,980,430.30, 510,096,616.65 and 135,655,143.90 is: 203,532,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,980,430.30 : 510,096,616.65 = 135,655,143.90 : x
  2. Step 2: Convert to fraction form
    339,980,430.30/510,096,616.65 = 135,655,143.90/x
  3. Step 3: Cross multiply
    339,980,430.30x = 510,096,616.65 × 135,655,143.90
  4. Step 4: Simplify right side
    339,980,430.30x = 69,197,229,934,558,888
  5. Step 5: Solve for x
    x = 69,197,229,934,558,888/339,980,430.30
  6. Step 6: Final answer
    x = 203,532,979.45

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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.