Home / 347,753,510.80-521,630,266.20-261,022,339.60

Finding the Fourth Proportional to 347,753,510.80, 521,630,266.20 and 261,022,339.60

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Solution

The fourth proportional to 347,753,510.80, 521,630,266.20 and 261,022,339.60 is: 391,533,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,753,510.80 : 521,630,266.20 = 261,022,339.60 : x
  2. Step 2: Convert to fraction form
    347,753,510.80/521,630,266.20 = 261,022,339.60/x
  3. Step 3: Cross multiply
    347,753,510.80x = 521,630,266.20 × 261,022,339.60
  4. Step 4: Simplify right side
    347,753,510.80x = 136,157,152,489,694,800
  5. Step 5: Solve for x
    x = 136,157,152,489,694,800/347,753,510.80
  6. Step 6: Final answer
    x = 391,533,509.40

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1.5x scale

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.