Home / 140,626,113.72-194,061,928.14-77,902,013.16

Finding the Fourth Proportional to 140,626,113.72, 194,061,928.14 and 77,902,013.16

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Solution

The fourth proportional to 140,626,113.72, 194,061,928.14 and 77,902,013.16 is: 107,503,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,626,113.72 : 194,061,928.14 = 77,902,013.16 : x
  2. Step 2: Convert to fraction form
    140,626,113.72/194,061,928.14 = 77,902,013.16/x
  3. Step 3: Cross multiply
    140,626,113.72x = 194,061,928.14 × 77,902,013.16
  4. Step 4: Simplify right side
    140,626,113.72x = 15,117,814,879,817,252
  5. Step 5: Solve for x
    x = 15,117,814,879,817,252/140,626,113.72
  6. Step 6: Final answer
    x = 107,503,609.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.