Home / 578,798,512.40-868,197,768.60-395,132,502.80

Finding the Fourth Proportional to 578,798,512.40, 868,197,768.60 and 395,132,502.80

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Solution

The fourth proportional to 578,798,512.40, 868,197,768.60 and 395,132,502.80 is: 592,698,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,798,512.40 : 868,197,768.60 = 395,132,502.80 : x
  2. Step 2: Convert to fraction form
    578,798,512.40/868,197,768.60 = 395,132,502.80/x
  3. Step 3: Cross multiply
    578,798,512.40x = 868,197,768.60 × 395,132,502.80
  4. Step 4: Simplify right side
    578,798,512.40x = 343,053,157,232,293,248
  5. Step 5: Solve for x
    x = 343,053,157,232,293,248/578,798,512.40
  6. Step 6: Final answer
    x = 592,698,754.20

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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.