Home / 286,518,979.20-428,864,011.20-226,052,803.20

Finding the Fourth Proportional to 286,518,979.20, 428,864,011.20 and 226,052,803.20

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Solution

The fourth proportional to 286,518,979.20, 428,864,011.20 and 226,052,803.20 is: 338,357,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,518,979.20 : 428,864,011.20 = 226,052,803.20 : x
  2. Step 2: Convert to fraction form
    286,518,979.20/428,864,011.20 = 226,052,803.20/x
  3. Step 3: Cross multiply
    286,518,979.20x = 428,864,011.20 × 226,052,803.20
  4. Step 4: Simplify right side
    286,518,979.20x = 96,945,911,923,356,192
  5. Step 5: Solve for x
    x = 96,945,911,923,356,192/286,518,979.20
  6. Step 6: Final answer
    x = 338,357,731.81

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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.