Home / 1,029,129,019.10-1,420,196,965.98-559,229,222.24

Finding the Fourth Proportional to 1,029,129,019.10, 1,420,196,965.98 and 559,229,222.24

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Solution

The fourth proportional to 1,029,129,019.10, 1,420,196,965.98 and 559,229,222.24 is: 771,735,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,129,019.10 : 1,420,196,965.98 = 559,229,222.24 : x
  2. Step 2: Convert to fraction form
    1,029,129,019.10/1,420,196,965.98 = 559,229,222.24/x
  3. Step 3: Cross multiply
    1,029,129,019.10x = 1,420,196,965.98 × 559,229,222.24
  4. Step 4: Simplify right side
    1,029,129,019.10x = 794,215,644,712,603,136
  5. Step 5: Solve for x
    x = 794,215,644,712,603,136/1,029,129,019.10
  6. Step 6: Final answer
    x = 771,735,739.61

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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.