Home / 89,424,222.40-134,136,333.60-78,086,814.40

Finding the Fourth Proportional to 89,424,222.40, 134,136,333.60 and 78,086,814.40

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Solution

The fourth proportional to 89,424,222.40, 134,136,333.60 and 78,086,814.40 is: 117,130,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,424,222.40 : 134,136,333.60 = 78,086,814.40 : x
  2. Step 2: Convert to fraction form
    89,424,222.40/134,136,333.60 = 78,086,814.40/x
  3. Step 3: Cross multiply
    89,424,222.40x = 134,136,333.60 × 78,086,814.40
  4. Step 4: Simplify right side
    89,424,222.40x = 10,474,278,986,119,684
  5. Step 5: Solve for x
    x = 10,474,278,986,119,684/89,424,222.40
  6. Step 6: Final answer
    x = 117,130,221.60

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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.