Home / 472,392,419.10-708,588,628.65-300,630,687.90

Finding the Fourth Proportional to 472,392,419.10, 708,588,628.65 and 300,630,687.90

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Solution

The fourth proportional to 472,392,419.10, 708,588,628.65 and 300,630,687.90 is: 450,946,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,419.10 : 708,588,628.65 = 300,630,687.90 : x
  2. Step 2: Convert to fraction form
    472,392,419.10/708,588,628.65 = 300,630,687.90/x
  3. Step 3: Cross multiply
    472,392,419.10x = 708,588,628.65 × 300,630,687.90
  4. Step 4: Simplify right side
    472,392,419.10x = 213,023,486,869,167,136
  5. Step 5: Solve for x
    x = 213,023,486,869,167,136/472,392,419.10
  6. Step 6: Final answer
    x = 450,946,031.85

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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.