Home / 77,907,658.40-116,861,487.60-74,931,588.80

Finding the Fourth Proportional to 77,907,658.40, 116,861,487.60 and 74,931,588.80

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Solution

The fourth proportional to 77,907,658.40, 116,861,487.60 and 74,931,588.80 is: 112,397,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,907,658.40 : 116,861,487.60 = 74,931,588.80 : x
  2. Step 2: Convert to fraction form
    77,907,658.40/116,861,487.60 = 74,931,588.80/x
  3. Step 3: Cross multiply
    77,907,658.40x = 116,861,487.60 × 74,931,588.80
  4. Step 4: Simplify right side
    77,907,658.40x = 8,756,616,935,399,498
  5. Step 5: Solve for x
    x = 8,756,616,935,399,498/77,907,658.40
  6. Step 6: Final answer
    x = 112,397,383.20

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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.