Home / 389,416,381.29-584,202,521.48-143,774,514.45

Finding the Fourth Proportional to 389,416,381.29, 584,202,521.48 and 143,774,514.45

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Solution

The fourth proportional to 389,416,381.29, 584,202,521.48 and 143,774,514.45 is: 215,690,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,416,381.29 : 584,202,521.48 = 143,774,514.45 : x
  2. Step 2: Convert to fraction form
    389,416,381.29/584,202,521.48 = 143,774,514.45/x
  3. Step 3: Cross multiply
    389,416,381.29x = 584,202,521.48 × 143,774,514.45
  4. Step 4: Simplify right side
    389,416,381.29x = 83,993,433,865,533,824
  5. Step 5: Solve for x
    x = 83,993,433,865,533,824/389,416,381.29
  6. Step 6: Final answer
    x = 215,690,551.04

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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.