Home / 400,875,418-553,198,667.88-235,873,674.64

Finding the Fourth Proportional to 400,875,418, 553,198,667.88 and 235,873,674.64

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Solution

The fourth proportional to 400,875,418, 553,198,667.88 and 235,873,674.64 is: 325,500,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,875,418 : 553,198,667.88 = 235,873,674.64 : x
  2. Step 2: Convert to fraction form
    400,875,418/553,198,667.88 = 235,873,674.64/x
  3. Step 3: Cross multiply
    400,875,418x = 553,198,667.88 × 235,873,674.64
  4. Step 4: Simplify right side
    400,875,418x = 130,485,002,598,808,528
  5. Step 5: Solve for x
    x = 130,485,002,598,808,528/400,875,418
  6. Step 6: Final answer
    x = 325,500,134.80

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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.