Home / 213,376,443.30-320,303,813.40-165,068,456.40

Finding the Fourth Proportional to 213,376,443.30, 320,303,813.40 and 165,068,456.40

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Solution

The fourth proportional to 213,376,443.30, 320,303,813.40 and 165,068,456.40 is: 247,787,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,376,443.30 : 320,303,813.40 = 165,068,456.40 : x
  2. Step 2: Convert to fraction form
    213,376,443.30/320,303,813.40 = 165,068,456.40/x
  3. Step 3: Cross multiply
    213,376,443.30x = 320,303,813.40 × 165,068,456.40
  4. Step 4: Simplify right side
    213,376,443.30x = 52,872,056,056,971,632
  5. Step 5: Solve for x
    x = 52,872,056,056,971,632/213,376,443.30
  6. Step 6: Final answer
    x = 247,787,690.33

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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.