Home / 129,899,480,696.96-179,261,669,486.43-72,031,937,199.30

Finding the Fourth Proportional to 129,899,480,696.96, 179,261,669,486.43 and 72,031,937,199.30

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Solution

The fourth proportional to 129,899,480,696.96, 179,261,669,486.43 and 72,031,937,199.30 is: 99,404,287,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,899,480,696.96 : 179,261,669,486.43 = 72,031,937,199.30 : x
  2. Step 2: Convert to fraction form
    129,899,480,696.96/179,261,669,486.43 = 72,031,937,199.30/x
  3. Step 3: Cross multiply
    129,899,480,696.96x = 179,261,669,486.43 × 72,031,937,199.30
  4. Step 4: Simplify right side
    129,899,480,696.96x = 12,912,565,318,688,199,147,520
  5. Step 5: Solve for x
    x = 12,912,565,318,688,199,147,520/129,899,480,696.96
  6. Step 6: Final answer
    x = 99,404,287,449.09

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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.