Home / 472,392,502.20-708,588,753.30-299,355,312.60

Finding the Fourth Proportional to 472,392,502.20, 708,588,753.30 and 299,355,312.60

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Solution

The fourth proportional to 472,392,502.20, 708,588,753.30 and 299,355,312.60 is: 449,032,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,502.20 : 708,588,753.30 = 299,355,312.60 : x
  2. Step 2: Convert to fraction form
    472,392,502.20/708,588,753.30 = 299,355,312.60/x
  3. Step 3: Cross multiply
    472,392,502.20x = 708,588,753.30 × 299,355,312.60
  4. Step 4: Simplify right side
    472,392,502.20x = 212,119,807,748,965,792
  5. Step 5: Solve for x
    x = 212,119,807,748,965,792/472,392,502.20
  6. Step 6: Final answer
    x = 449,032,968.90

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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.