Home / 1,238,981,203.98-1,858,459,208.85-318,853,966.86

Finding the Fourth Proportional to 1,238,981,203.98, 1,858,459,208.85 and 318,853,966.86

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Solution

The fourth proportional to 1,238,981,203.98, 1,858,459,208.85 and 318,853,966.86 is: 478,277,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,981,203.98 : 1,858,459,208.85 = 318,853,966.86 : x
  2. Step 2: Convert to fraction form
    1,238,981,203.98/1,858,459,208.85 = 318,853,966.86/x
  3. Step 3: Cross multiply
    1,238,981,203.98x = 1,858,459,208.85 × 318,853,966.86
  4. Step 4: Simplify right side
    1,238,981,203.98x = 592,577,090,989,319,680
  5. Step 5: Solve for x
    x = 592,577,090,989,319,680/1,238,981,203.98
  6. Step 6: Final answer
    x = 478,277,708.40

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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.