Home / 641,428,434.55-885,171,239.76-348,073,002.55

Finding the Fourth Proportional to 641,428,434.55, 885,171,239.76 and 348,073,002.55

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Solution

The fourth proportional to 641,428,434.55, 885,171,239.76 and 348,073,002.55 is: 480,340,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,428,434.55 : 885,171,239.76 = 348,073,002.55 : x
  2. Step 2: Convert to fraction form
    641,428,434.55/885,171,239.76 = 348,073,002.55/x
  3. Step 3: Cross multiply
    641,428,434.55x = 885,171,239.76 × 348,073,002.55
  4. Step 4: Simplify right side
    641,428,434.55x = 308,104,211,194,169,152
  5. Step 5: Solve for x
    x = 308,104,211,194,169,152/641,428,434.55
  6. Step 6: Final answer
    x = 480,340,743.56

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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.