Home / 13,142,916,456.52-18,143,478,859.28-8,805,113,209.20

Finding the Fourth Proportional to 13,142,916,456.52, 18,143,478,859.28 and 8,805,113,209.20

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Solution

The fourth proportional to 13,142,916,456.52, 18,143,478,859.28 and 8,805,113,209.20 is: 12,155,246,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142,916,456.52 : 18,143,478,859.28 = 8,805,113,209.20 : x
  2. Step 2: Convert to fraction form
    13,142,916,456.52/18,143,478,859.28 = 8,805,113,209.20/x
  3. Step 3: Cross multiply
    13,142,916,456.52x = 18,143,478,859.28 × 8,805,113,209.20
  4. Step 4: Simplify right side
    13,142,916,456.52x = 159,755,385,364,687,290,368
  5. Step 5: Solve for x
    x = 159,755,385,364,687,290,368/13,142,916,456.52
  6. Step 6: Final answer
    x = 12,155,246,203.78

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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.