Home / 129,723,442.92-179,018,343.81-70,986,112.29

Finding the Fourth Proportional to 129,723,442.92, 179,018,343.81 and 70,986,112.29

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Solution

The fourth proportional to 129,723,442.92, 179,018,343.81 and 70,986,112.29 is: 97,960,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,723,442.92 : 179,018,343.81 = 70,986,112.29 : x
  2. Step 2: Convert to fraction form
    129,723,442.92/179,018,343.81 = 70,986,112.29/x
  3. Step 3: Cross multiply
    129,723,442.92x = 179,018,343.81 × 70,986,112.29
  4. Step 4: Simplify right side
    129,723,442.92x = 12,707,816,255,666,488
  5. Step 5: Solve for x
    x = 12,707,816,255,666,488/129,723,442.92
  6. Step 6: Final answer
    x = 97,960,830.90

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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.