Home / 5,428,141,501.88-7,491,155,247.09-4,087,666,609.94

Finding the Fourth Proportional to 5,428,141,501.88, 7,491,155,247.09 and 4,087,666,609.94

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Solution

The fourth proportional to 5,428,141,501.88, 7,491,155,247.09 and 4,087,666,609.94 is: 5,641,220,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,141,501.88 : 7,491,155,247.09 = 4,087,666,609.94 : x
  2. Step 2: Convert to fraction form
    5,428,141,501.88/7,491,155,247.09 = 4,087,666,609.94/x
  3. Step 3: Cross multiply
    5,428,141,501.88x = 7,491,155,247.09 × 4,087,666,609.94
  4. Step 4: Simplify right side
    5,428,141,501.88x = 30,621,345,173,369,167,872
  5. Step 5: Solve for x
    x = 30,621,345,173,369,167,872/5,428,141,501.88
  6. Step 6: Final answer
    x = 5,641,220,878.78

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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.