Home / 472,392,499.20-708,588,748.80-426,475,996.80

Finding the Fourth Proportional to 472,392,499.20, 708,588,748.80 and 426,475,996.80

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Solution

The fourth proportional to 472,392,499.20, 708,588,748.80 and 426,475,996.80 is: 639,713,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,499.20 : 708,588,748.80 = 426,475,996.80 : x
  2. Step 2: Convert to fraction form
    472,392,499.20/708,588,748.80 = 426,475,996.80/x
  3. Step 3: Cross multiply
    472,392,499.20x = 708,588,748.80 × 426,475,996.80
  4. Step 4: Simplify right side
    472,392,499.20x = 302,196,092,965,744,768
  5. Step 5: Solve for x
    x = 302,196,092,965,744,768/472,392,499.20
  6. Step 6: Final answer
    x = 639,713,995.20

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1.5x scale

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.