Home / 472,392,421.20-708,588,631.80-242,384,756.40

Finding the Fourth Proportional to 472,392,421.20, 708,588,631.80 and 242,384,756.40

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Solution

The fourth proportional to 472,392,421.20, 708,588,631.80 and 242,384,756.40 is: 363,577,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,421.20 : 708,588,631.80 = 242,384,756.40 : x
  2. Step 2: Convert to fraction form
    472,392,421.20/708,588,631.80 = 242,384,756.40/x
  3. Step 3: Cross multiply
    472,392,421.20x = 708,588,631.80 × 242,384,756.40
  4. Step 4: Simplify right side
    472,392,421.20x = 171,751,082,906,652,288
  5. Step 5: Solve for x
    x = 171,751,082,906,652,288/472,392,421.20
  6. Step 6: Final answer
    x = 363,577,134.60

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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.