Home / 448,518,429.20-672,777,643.80-275,434,000.40

Finding the Fourth Proportional to 448,518,429.20, 672,777,643.80 and 275,434,000.40

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Solution

The fourth proportional to 448,518,429.20, 672,777,643.80 and 275,434,000.40 is: 413,151,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,518,429.20 : 672,777,643.80 = 275,434,000.40 : x
  2. Step 2: Convert to fraction form
    448,518,429.20/672,777,643.80 = 275,434,000.40/x
  3. Step 3: Cross multiply
    448,518,429.20x = 672,777,643.80 × 275,434,000.40
  4. Step 4: Simplify right side
    448,518,429.20x = 185,305,837,811,520,224
  5. Step 5: Solve for x
    x = 185,305,837,811,520,224/448,518,429.20
  6. Step 6: Final answer
    x = 413,151,000.60

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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.