Home / 1,225,948,071.38-1,691,807,893.61-669,031,118.44

Finding the Fourth Proportional to 1,225,948,071.38, 1,691,807,893.61 and 669,031,118.44

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Solution

The fourth proportional to 1,225,948,071.38, 1,691,807,893.61 and 669,031,118.44 is: 923,262,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,948,071.38 : 1,691,807,893.61 = 669,031,118.44 : x
  2. Step 2: Convert to fraction form
    1,225,948,071.38/1,691,807,893.61 = 669,031,118.44/x
  3. Step 3: Cross multiply
    1,225,948,071.38x = 1,691,807,893.61 × 669,031,118.44
  4. Step 4: Simplify right side
    1,225,948,071.38x = 1,131,872,127,239,944,192
  5. Step 5: Solve for x
    x = 1,131,872,127,239,944,192/1,225,948,071.38
  6. Step 6: Final answer
    x = 923,262,700.65

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Double scale
Find fourth proportional to 1,225,948,072.38, 1,691,807,894.99 and 669,031,119.44
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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.