Home / 487,121,383.10-672,241,686.65-275,423,666.21

Finding the Fourth Proportional to 487,121,383.10, 672,241,686.65 and 275,423,666.21

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Solution

The fourth proportional to 487,121,383.10, 672,241,686.65 and 275,423,666.21 is: 380,092,675.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,121,383.10 : 672,241,686.65 = 275,423,666.21 : x
  2. Step 2: Convert to fraction form
    487,121,383.10/672,241,686.65 = 275,423,666.21/x
  3. Step 3: Cross multiply
    487,121,383.10x = 672,241,686.65 × 275,423,666.21
  4. Step 4: Simplify right side
    487,121,383.10x = 185,151,269,916,336,992
  5. Step 5: Solve for x
    x = 185,151,269,916,336,992/487,121,383.10
  6. Step 6: Final answer
    x = 380,092,675.75

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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.