Home / 217,038,807.20-325,558,210.80-187,813,488.80

Finding the Fourth Proportional to 217,038,807.20, 325,558,210.80 and 187,813,488.80

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Solution

The fourth proportional to 217,038,807.20, 325,558,210.80 and 187,813,488.80 is: 281,720,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,038,807.20 : 325,558,210.80 = 187,813,488.80 : x
  2. Step 2: Convert to fraction form
    217,038,807.20/325,558,210.80 = 187,813,488.80/x
  3. Step 3: Cross multiply
    217,038,807.20x = 325,558,210.80 × 187,813,488.80
  4. Step 4: Simplify right side
    217,038,807.20x = 61,144,223,377,833,848
  5. Step 5: Solve for x
    x = 61,144,223,377,833,848/217,038,807.20
  6. Step 6: Final answer
    x = 281,720,233.20

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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.