Home / 723,218,867.30-998,254,440.88-472,361,609.18

Finding the Fourth Proportional to 723,218,867.30, 998,254,440.88 and 472,361,609.18

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Solution

The fourth proportional to 723,218,867.30, 998,254,440.88 and 472,361,609.18 is: 651,997,749.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,218,867.30 : 998,254,440.88 = 472,361,609.18 : x
  2. Step 2: Convert to fraction form
    723,218,867.30/998,254,440.88 = 472,361,609.18/x
  3. Step 3: Cross multiply
    723,218,867.30x = 998,254,440.88 × 472,361,609.18
  4. Step 4: Simplify right side
    723,218,867.30x = 471,537,074,058,985,856
  5. Step 5: Solve for x
    x = 471,537,074,058,985,856/723,218,867.30
  6. Step 6: Final answer
    x = 651,997,749.76

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Double scale
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1.5x scale

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.