Home / 6,464,678.40-8,919,279.28-3,747,882.24

Finding the Fourth Proportional to 6,464,678.40, 8,919,279.28 and 3,747,882.24

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Solution

The fourth proportional to 6,464,678.40, 8,919,279.28 and 3,747,882.24 is: 5,170,931.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464,678.40 : 8,919,279.28 = 3,747,882.24 : x
  2. Step 2: Convert to fraction form
    6,464,678.40/8,919,279.28 = 3,747,882.24/x
  3. Step 3: Cross multiply
    6,464,678.40x = 8,919,279.28 × 3,747,882.24
  4. Step 4: Simplify right side
    6,464,678.40x = 33,428,408,407,111.99
  5. Step 5: Solve for x
    x = 33,428,408,407,111.99/6,464,678.40
  6. Step 6: Final answer
    x = 5,170,931.38

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Double scale
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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.