Home / 145,510,333.62-200,806,378.04-82,785,081.57

Finding the Fourth Proportional to 145,510,333.62, 200,806,378.04 and 82,785,081.57

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Solution

The fourth proportional to 145,510,333.62, 200,806,378.04 and 82,785,081.57 is: 114,244,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,510,333.62 : 200,806,378.04 = 82,785,081.57 : x
  2. Step 2: Convert to fraction form
    145,510,333.62/200,806,378.04 = 82,785,081.57/x
  3. Step 3: Cross multiply
    145,510,333.62x = 200,806,378.04 × 82,785,081.57
  4. Step 4: Simplify right side
    145,510,333.62x = 16,623,772,385,895,240
  5. Step 5: Solve for x
    x = 16,623,772,385,895,240/145,510,333.62
  6. Step 6: Final answer
    x = 114,244,617.35

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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.