Home / 400,874,866-553,197,906.12-235,873,122.64

Finding the Fourth Proportional to 400,874,866, 553,197,906.12 and 235,873,122.64

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Solution

The fourth proportional to 400,874,866, 553,197,906.12 and 235,873,122.64 is: 325,499,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,874,866 : 553,197,906.12 = 235,873,122.64 : x
  2. Step 2: Convert to fraction form
    400,874,866/553,197,906.12 = 235,873,122.64/x
  3. Step 3: Cross multiply
    400,874,866x = 553,197,906.12 × 235,873,122.64
  4. Step 4: Simplify right side
    400,874,866x = 130,484,517,554,433,952
  5. Step 5: Solve for x
    x = 130,484,517,554,433,952/400,874,866
  6. Step 6: Final answer
    x = 325,499,373.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.