Home / 400,156,864.50-552,216,473.01-217,016,512.50

Finding the Fourth Proportional to 400,156,864.50, 552,216,473.01 and 217,016,512.50

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Solution

The fourth proportional to 400,156,864.50, 552,216,473.01 and 217,016,512.50 is: 299,482,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156,864.50 : 552,216,473.01 = 217,016,512.50 : x
  2. Step 2: Convert to fraction form
    400,156,864.50/552,216,473.01 = 217,016,512.50/x
  3. Step 3: Cross multiply
    400,156,864.50x = 552,216,473.01 × 217,016,512.50
  4. Step 4: Simplify right side
    400,156,864.50x = 119,840,093,117,680,576
  5. Step 5: Solve for x
    x = 119,840,093,117,680,576/400,156,864.50
  6. Step 6: Final answer
    x = 299,482,787.25

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1.5x scale

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.