Home / 105,919,928.40-158,879,892.60-65,609,144.40

Finding the Fourth Proportional to 105,919,928.40, 158,879,892.60 and 65,609,144.40

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Solution

The fourth proportional to 105,919,928.40, 158,879,892.60 and 65,609,144.40 is: 98,413,716.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,919,928.40 : 158,879,892.60 = 65,609,144.40 : x
  2. Step 2: Convert to fraction form
    105,919,928.40/158,879,892.60 = 65,609,144.40/x
  3. Step 3: Cross multiply
    105,919,928.40x = 158,879,892.60 × 65,609,144.40
  4. Step 4: Simplify right side
    105,919,928.40x = 10,423,973,815,849,890
  5. Step 5: Solve for x
    x = 10,423,973,815,849,890/105,919,928.40
  6. Step 6: Final answer
    x = 98,413,716.60

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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.