Home / 690,222,302.34-952,530,282.55-408,206,492.88

Finding the Fourth Proportional to 690,222,302.34, 952,530,282.55 and 408,206,492.88

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Solution

The fourth proportional to 690,222,302.34, 952,530,282.55 and 408,206,492.88 is: 563,338,861.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,222,302.34 : 952,530,282.55 = 408,206,492.88 : x
  2. Step 2: Convert to fraction form
    690,222,302.34/952,530,282.55 = 408,206,492.88/x
  3. Step 3: Cross multiply
    690,222,302.34x = 952,530,282.55 × 408,206,492.88
  4. Step 4: Simplify right side
    690,222,302.34x = 388,829,046,001,730,944
  5. Step 5: Solve for x
    x = 388,829,046,001,730,944/690,222,302.34
  6. Step 6: Final answer
    x = 563,338,861.53

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1.5x scale

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.