Home / 13,424,657.60-20,136,986.40-7,740,207.20

Finding the Fourth Proportional to 13,424,657.60, 20,136,986.40 and 7,740,207.20

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Solution

The fourth proportional to 13,424,657.60, 20,136,986.40 and 7,740,207.20 is: 11,610,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424,657.60 : 20,136,986.40 = 7,740,207.20 : x
  2. Step 2: Convert to fraction form
    13,424,657.60/20,136,986.40 = 7,740,207.20/x
  3. Step 3: Cross multiply
    13,424,657.60x = 20,136,986.40 × 7,740,207.20
  4. Step 4: Simplify right side
    13,424,657.60x = 155,864,447,119,582.06
  5. Step 5: Solve for x
    x = 155,864,447,119,582.06/13,424,657.60
  6. Step 6: Final answer
    x = 11,610,310.80

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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.