Home / 319,211,038.10-478,428,363.66-225,864,903.80

Finding the Fourth Proportional to 319,211,038.10, 478,428,363.66 and 225,864,903.80

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Solution

The fourth proportional to 319,211,038.10, 478,428,363.66 and 225,864,903.80 is: 338,522,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,211,038.10 : 478,428,363.66 = 225,864,903.80 : x
  2. Step 2: Convert to fraction form
    319,211,038.10/478,428,363.66 = 225,864,903.80/x
  3. Step 3: Cross multiply
    319,211,038.10x = 478,428,363.66 × 225,864,903.80
  4. Step 4: Simplify right side
    319,211,038.10x = 108,060,176,333,257,328
  5. Step 5: Solve for x
    x = 108,060,176,333,257,328/319,211,038.10
  6. Step 6: Final answer
    x = 338,522,680.72

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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.