Home / 465,290,813.76-642,105,230.04-256,447,489.92

Finding the Fourth Proportional to 465,290,813.76, 642,105,230.04 and 256,447,489.92

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Solution

The fourth proportional to 465,290,813.76, 642,105,230.04 and 256,447,489.92 is: 353,899,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,290,813.76 : 642,105,230.04 = 256,447,489.92 : x
  2. Step 2: Convert to fraction form
    465,290,813.76/642,105,230.04 = 256,447,489.92/x
  3. Step 3: Cross multiply
    465,290,813.76x = 642,105,230.04 × 256,447,489.92
  4. Step 4: Simplify right side
    465,290,813.76x = 164,666,274,508,262,176
  5. Step 5: Solve for x
    x = 164,666,274,508,262,176/465,290,813.76
  6. Step 6: Final answer
    x = 353,899,689.48

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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.