Home / 638,578,069.80-957,867,104.70-485,523,061.80

Finding the Fourth Proportional to 638,578,069.80, 957,867,104.70 and 485,523,061.80

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Solution

The fourth proportional to 638,578,069.80, 957,867,104.70 and 485,523,061.80 is: 728,284,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,578,069.80 : 957,867,104.70 = 485,523,061.80 : x
  2. Step 2: Convert to fraction form
    638,578,069.80/957,867,104.70 = 485,523,061.80/x
  3. Step 3: Cross multiply
    638,578,069.80x = 957,867,104.70 × 485,523,061.80
  4. Step 4: Simplify right side
    638,578,069.80x = 465,066,569,471,445,184
  5. Step 5: Solve for x
    x = 465,066,569,471,445,184/638,578,069.80
  6. Step 6: Final answer
    x = 728,284,592.70

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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.