Home / 787,392,023.80-1,181,088,035.70-328,226,999.80

Finding the Fourth Proportional to 787,392,023.80, 1,181,088,035.70 and 328,226,999.80

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Solution

The fourth proportional to 787,392,023.80, 1,181,088,035.70 and 328,226,999.80 is: 492,340,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,392,023.80 : 1,181,088,035.70 = 328,226,999.80 : x
  2. Step 2: Convert to fraction form
    787,392,023.80/1,181,088,035.70 = 328,226,999.80/x
  3. Step 3: Cross multiply
    787,392,023.80x = 1,181,088,035.70 × 328,226,999.80
  4. Step 4: Simplify right side
    787,392,023.80x = 387,664,982,457,486,336
  5. Step 5: Solve for x
    x = 387,664,982,457,486,336/787,392,023.80
  6. Step 6: Final answer
    x = 492,340,499.70

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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.