Home / 373,990,153.60-516,157,681.98-215,217,013.48

Finding the Fourth Proportional to 373,990,153.60, 516,157,681.98 and 215,217,013.48

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Solution

The fourth proportional to 373,990,153.60, 516,157,681.98 and 215,217,013.48 is: 297,028,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,990,153.60 : 516,157,681.98 = 215,217,013.48 : x
  2. Step 2: Convert to fraction form
    373,990,153.60/516,157,681.98 = 215,217,013.48/x
  3. Step 3: Cross multiply
    373,990,153.60x = 516,157,681.98 × 215,217,013.48
  4. Step 4: Simplify right side
    373,990,153.60x = 111,085,914,800,495,216
  5. Step 5: Solve for x
    x = 111,085,914,800,495,216/373,990,153.60
  6. Step 6: Final answer
    x = 297,028,982.53

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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.