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Finding the Fourth Proportional to 253,449,063.80, 380,079,117.30 and 100,063,381.40

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Solution

The fourth proportional to 253,449,063.80, 380,079,117.30 and 100,063,381.40 is: 150,057,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,449,063.80 : 380,079,117.30 = 100,063,381.40 : x
  2. Step 2: Convert to fraction form
    253,449,063.80/380,079,117.30 = 100,063,381.40/x
  3. Step 3: Cross multiply
    253,449,063.80x = 380,079,117.30 × 100,063,381.40
  4. Step 4: Simplify right side
    253,449,063.80x = 38,032,001,676,565,240
  5. Step 5: Solve for x
    x = 38,032,001,676,565,240/253,449,063.80
  6. Step 6: Final answer
    x = 150,057,771.40

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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.