Home / 129,777,043,266.34-179,035,270,700.97-78,306,894,070.18

Finding the Fourth Proportional to 129,777,043,266.34, 179,035,270,700.97 and 78,306,894,070.18

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Solution

The fourth proportional to 129,777,043,266.34, 179,035,270,700.97 and 78,306,894,070.18 is: 108,029,090,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,777,043,266.34 : 179,035,270,700.97 = 78,306,894,070.18 : x
  2. Step 2: Convert to fraction form
    129,777,043,266.34/179,035,270,700.97 = 78,306,894,070.18/x
  3. Step 3: Cross multiply
    129,777,043,266.34x = 179,035,270,700.97 × 78,306,894,070.18
  4. Step 4: Simplify right side
    129,777,043,266.34x = 14,019,695,977,606,856,835,072
  5. Step 5: Solve for x
    x = 14,019,695,977,606,856,835,072/129,777,043,266.34
  6. Step 6: Final answer
    x = 108,029,090,698.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.