Home / 129,773,193.57-179,087,063.13-71,036,193.69

Finding the Fourth Proportional to 129,773,193.57, 179,087,063.13 and 71,036,193.69

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Solution

The fourth proportional to 129,773,193.57, 179,087,063.13 and 71,036,193.69 is: 98,029,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,773,193.57 : 179,087,063.13 = 71,036,193.69 : x
  2. Step 2: Convert to fraction form
    129,773,193.57/179,087,063.13 = 71,036,193.69/x
  3. Step 3: Cross multiply
    129,773,193.57x = 179,087,063.13 × 71,036,193.69
  4. Step 4: Simplify right side
    129,773,193.57x = 12,721,663,303,875,936
  5. Step 5: Solve for x
    x = 12,721,663,303,875,936/129,773,193.57
  6. Step 6: Final answer
    x = 98,029,977.95

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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.