Home / 468,649,344.20-702,974,016.30-392,688,710.60

Finding the Fourth Proportional to 468,649,344.20, 702,974,016.30 and 392,688,710.60

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Solution

The fourth proportional to 468,649,344.20, 702,974,016.30 and 392,688,710.60 is: 589,033,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,649,344.20 : 702,974,016.30 = 392,688,710.60 : x
  2. Step 2: Convert to fraction form
    468,649,344.20/702,974,016.30 = 392,688,710.60/x
  3. Step 3: Cross multiply
    468,649,344.20x = 702,974,016.30 × 392,688,710.60
  4. Step 4: Simplify right side
    468,649,344.20x = 276,049,960,046,150,368
  5. Step 5: Solve for x
    x = 276,049,960,046,150,368/468,649,344.20
  6. Step 6: Final answer
    x = 589,033,065.90

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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.