Home / 170,468,609.60-255,408,981.60-79,405,428.80

Finding the Fourth Proportional to 170,468,609.60, 255,408,981.60 and 79,405,428.80

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Solution

The fourth proportional to 170,468,609.60, 255,408,981.60 and 79,405,428.80 is: 118,971,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,468,609.60 : 255,408,981.60 = 79,405,428.80 : x
  2. Step 2: Convert to fraction form
    170,468,609.60/255,408,981.60 = 79,405,428.80/x
  3. Step 3: Cross multiply
    170,468,609.60x = 255,408,981.60 × 79,405,428.80
  4. Step 4: Simplify right side
    170,468,609.60x = 20,280,859,703,319,308
  5. Step 5: Solve for x
    x = 20,280,859,703,319,308/170,468,609.60
  6. Step 6: Final answer
    x = 118,971,227.32

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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.