Home / 15,812,752,114.66-21,821,639,357.82-8,578,799,217.40

Finding the Fourth Proportional to 15,812,752,114.66, 21,821,639,357.82 and 8,578,799,217.40

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Solution

The fourth proportional to 15,812,752,114.66, 21,821,639,357.82 and 8,578,799,217.40 is: 11,838,765,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812,752,114.66 : 21,821,639,357.82 = 8,578,799,217.40 : x
  2. Step 2: Convert to fraction form
    15,812,752,114.66/21,821,639,357.82 = 8,578,799,217.40/x
  3. Step 3: Cross multiply
    15,812,752,114.66x = 21,821,639,357.82 × 8,578,799,217.40
  4. Step 4: Simplify right side
    15,812,752,114.66x = 187,203,462,645,216,641,024
  5. Step 5: Solve for x
    x = 187,203,462,645,216,641,024/15,812,752,114.66
  6. Step 6: Final answer
    x = 11,838,765,401.99

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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.