Home / 1,433,520,726.29-1,978,358,028.38-869,029,401.28

Finding the Fourth Proportional to 1,433,520,726.29, 1,978,358,028.38 and 869,029,401.28

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Solution

The fourth proportional to 1,433,520,726.29, 1,978,358,028.38 and 869,029,401.28 is: 1,199,320,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,520,726.29 : 1,978,358,028.38 = 869,029,401.28 : x
  2. Step 2: Convert to fraction form
    1,433,520,726.29/1,978,358,028.38 = 869,029,401.28/x
  3. Step 3: Cross multiply
    1,433,520,726.29x = 1,978,358,028.38 × 869,029,401.28
  4. Step 4: Simplify right side
    1,433,520,726.29x = 1,719,251,292,914,162,432
  5. Step 5: Solve for x
    x = 1,719,251,292,914,162,432/1,433,520,726.29
  6. Step 6: Final answer
    x = 1,199,320,847.88

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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.