Home / 547,229,741.54-821,663,695.72-473,681,628.65

Finding the Fourth Proportional to 547,229,741.54, 821,663,695.72 and 473,681,628.65

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Solution

The fourth proportional to 547,229,741.54, 821,663,695.72 and 473,681,628.65 is: 711,231,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,229,741.54 : 821,663,695.72 = 473,681,628.65 : x
  2. Step 2: Convert to fraction form
    547,229,741.54/821,663,695.72 = 473,681,628.65/x
  3. Step 3: Cross multiply
    547,229,741.54x = 821,663,695.72 × 473,681,628.65
  4. Step 4: Simplify right side
    547,229,741.54x = 389,206,997,591,227,648
  5. Step 5: Solve for x
    x = 389,206,997,591,227,648/547,229,741.54
  6. Step 6: Final answer
    x = 711,231,440.92

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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.