Home / 347,753,512.80-521,630,269.20-261,022,341.60

Finding the Fourth Proportional to 347,753,512.80, 521,630,269.20 and 261,022,341.60

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Solution

The fourth proportional to 347,753,512.80, 521,630,269.20 and 261,022,341.60 is: 391,533,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,753,512.80 : 521,630,269.20 = 261,022,341.60 : x
  2. Step 2: Convert to fraction form
    347,753,512.80/521,630,269.20 = 261,022,341.60/x
  3. Step 3: Cross multiply
    347,753,512.80x = 521,630,269.20 × 261,022,341.60
  4. Step 4: Simplify right side
    347,753,512.80x = 136,157,154,316,022,352
  5. Step 5: Solve for x
    x = 136,157,154,316,022,352/347,753,512.80
  6. Step 6: Final answer
    x = 391,533,512.40

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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.