Home / 1,029,129,019.12-1,420,196,965.96-559,229,222.24

Finding the Fourth Proportional to 1,029,129,019.12, 1,420,196,965.96 and 559,229,222.24

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Solution

The fourth proportional to 1,029,129,019.12, 1,420,196,965.96 and 559,229,222.24 is: 771,735,739.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,129,019.12 : 1,420,196,965.96 = 559,229,222.24 : x
  2. Step 2: Convert to fraction form
    1,029,129,019.12/1,420,196,965.96 = 559,229,222.24/x
  3. Step 3: Cross multiply
    1,029,129,019.12x = 1,420,196,965.96 × 559,229,222.24
  4. Step 4: Simplify right side
    1,029,129,019.12x = 794,215,644,701,418,624
  5. Step 5: Solve for x
    x = 794,215,644,701,418,624/1,029,129,019.12
  6. Step 6: Final answer
    x = 771,735,739.59

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Double scale
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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.