Home / 89,424,009.60-134,136,014.40-31,981,142.40

Finding the Fourth Proportional to 89,424,009.60, 134,136,014.40 and 31,981,142.40

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Solution

The fourth proportional to 89,424,009.60, 134,136,014.40 and 31,981,142.40 is: 47,971,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,424,009.60 : 134,136,014.40 = 31,981,142.40 : x
  2. Step 2: Convert to fraction form
    89,424,009.60/134,136,014.40 = 31,981,142.40/x
  3. Step 3: Cross multiply
    89,424,009.60x = 134,136,014.40 × 31,981,142.40
  4. Step 4: Simplify right side
    89,424,009.60x = 4,289,822,977,494,850.50
  5. Step 5: Solve for x
    x = 4,289,822,977,494,850.50/89,424,009.60
  6. Step 6: Final answer
    x = 47,971,713.60

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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.