Home / 642,639,818.16-886,861,655.80-364,172,082.48

Finding the Fourth Proportional to 642,639,818.16, 886,861,655.80 and 364,172,082.48

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Solution

The fourth proportional to 642,639,818.16, 886,861,655.80 and 364,172,082.48 is: 502,568,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,639,818.16 : 886,861,655.80 = 364,172,082.48 : x
  2. Step 2: Convert to fraction form
    642,639,818.16/886,861,655.80 = 364,172,082.48/x
  3. Step 3: Cross multiply
    642,639,818.16x = 886,861,655.80 × 364,172,082.48
  4. Step 4: Simplify right side
    642,639,818.16x = 322,970,256,064,346,944
  5. Step 5: Solve for x
    x = 322,970,256,064,346,944/642,639,818.16
  6. Step 6: Final answer
    x = 502,568,074.59

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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.