Home / 129,718,841.88-179,006,655.60-77,536,647.66

Finding the Fourth Proportional to 129,718,841.88, 179,006,655.60 and 77,536,647.66

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Solution

The fourth proportional to 129,718,841.88, 179,006,655.60 and 77,536,647.66 is: 106,997,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,718,841.88 : 179,006,655.60 = 77,536,647.66 : x
  2. Step 2: Convert to fraction form
    129,718,841.88/179,006,655.60 = 77,536,647.66/x
  3. Step 3: Cross multiply
    129,718,841.88x = 179,006,655.60 × 77,536,647.66
  4. Step 4: Simplify right side
    129,718,841.88x = 13,879,575,984,052,164
  5. Step 5: Solve for x
    x = 13,879,575,984,052,164/129,718,841.88
  6. Step 6: Final answer
    x = 106,997,378.20

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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.