Home / 122,488,768.20-183,733,152.30-77,139,136.20

Finding the Fourth Proportional to 122,488,768.20, 183,733,152.30 and 77,139,136.20

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Solution

The fourth proportional to 122,488,768.20, 183,733,152.30 and 77,139,136.20 is: 115,708,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,488,768.20 : 183,733,152.30 = 77,139,136.20 : x
  2. Step 2: Convert to fraction form
    122,488,768.20/183,733,152.30 = 77,139,136.20/x
  3. Step 3: Cross multiply
    122,488,768.20x = 183,733,152.30 × 77,139,136.20
  4. Step 4: Simplify right side
    122,488,768.20x = 14,173,016,659,725,044
  5. Step 5: Solve for x
    x = 14,173,016,659,725,044/122,488,768.20
  6. Step 6: Final answer
    x = 115,708,704.30

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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.