Home / 144,719,995.20-217,017,007.20-47,638,190.40

Finding the Fourth Proportional to 144,719,995.20, 217,017,007.20 and 47,638,190.40

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Solution

The fourth proportional to 144,719,995.20, 217,017,007.20 and 47,638,190.40 is: 71,436,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,719,995.20 : 217,017,007.20 = 47,638,190.40 : x
  2. Step 2: Convert to fraction form
    144,719,995.20/217,017,007.20 = 47,638,190.40/x
  3. Step 3: Cross multiply
    144,719,995.20x = 217,017,007.20 × 47,638,190.40
  4. Step 4: Simplify right side
    144,719,995.20x = 10,338,297,509,031,770
  5. Step 5: Solve for x
    x = 10,338,297,509,031,770/144,719,995.20
  6. Step 6: Final answer
    x = 71,436,552.32

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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.