Home / 472,392,805.20-708,589,207.80-242,385,140.40

Finding the Fourth Proportional to 472,392,805.20, 708,589,207.80 and 242,385,140.40

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Solution

The fourth proportional to 472,392,805.20, 708,589,207.80 and 242,385,140.40 is: 363,577,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,805.20 : 708,589,207.80 = 242,385,140.40 : x
  2. Step 2: Convert to fraction form
    472,392,805.20/708,589,207.80 = 242,385,140.40/x
  3. Step 3: Cross multiply
    472,392,805.20x = 708,589,207.80 × 242,385,140.40
  4. Step 4: Simplify right side
    472,392,805.20x = 171,751,494,618,527,776
  5. Step 5: Solve for x
    x = 171,751,494,618,527,776/472,392,805.20
  6. Step 6: Final answer
    x = 363,577,710.60

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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.