Home / 1,147,396,590.40-1,721,094,885.60-371,120,721.70

Finding the Fourth Proportional to 1,147,396,590.40, 1,721,094,885.60 and 371,120,721.70

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Solution

The fourth proportional to 1,147,396,590.40, 1,721,094,885.60 and 371,120,721.70 is: 556,681,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,396,590.40 : 1,721,094,885.60 = 371,120,721.70 : x
  2. Step 2: Convert to fraction form
    1,147,396,590.40/1,721,094,885.60 = 371,120,721.70/x
  3. Step 3: Cross multiply
    1,147,396,590.40x = 1,721,094,885.60 × 371,120,721.70
  4. Step 4: Simplify right side
    1,147,396,590.40x = 638,733,976,058,050,944
  5. Step 5: Solve for x
    x = 638,733,976,058,050,944/1,147,396,590.40
  6. Step 6: Final answer
    x = 556,681,082.55

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.