Home / 215,223,316.80-323,685,280.80-193,115,371.20

Finding the Fourth Proportional to 215,223,316.80, 323,685,280.80 and 193,115,371.20

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Solution

The fourth proportional to 215,223,316.80, 323,685,280.80 and 193,115,371.20 is: 290,436,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,223,316.80 : 323,685,280.80 = 193,115,371.20 : x
  2. Step 2: Convert to fraction form
    215,223,316.80/323,685,280.80 = 193,115,371.20/x
  3. Step 3: Cross multiply
    215,223,316.80x = 323,685,280.80 × 193,115,371.20
  4. Step 4: Simplify right side
    215,223,316.80x = 62,508,603,153,668,232
  5. Step 5: Solve for x
    x = 62,508,603,153,668,232/215,223,316.80
  6. Step 6: Final answer
    x = 290,436,018.19

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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.