Home / 429,046,424.64-643,406,282.64-254,218,793.22

Finding the Fourth Proportional to 429,046,424.64, 643,406,282.64 and 254,218,793.22

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Solution

The fourth proportional to 429,046,424.64, 643,406,282.64 and 254,218,793.22 is: 381,231,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,046,424.64 : 643,406,282.64 = 254,218,793.22 : x
  2. Step 2: Convert to fraction form
    429,046,424.64/643,406,282.64 = 254,218,793.22/x
  3. Step 3: Cross multiply
    429,046,424.64x = 643,406,282.64 × 254,218,793.22
  4. Step 4: Simplify right side
    429,046,424.64x = 163,565,968,722,907,040
  5. Step 5: Solve for x
    x = 163,565,968,722,907,040/429,046,424.64
  6. Step 6: Final answer
    x = 381,231,399.05

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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.