Home / 130,365,261.40-179,859,566.94-80,787,545.70

Finding the Fourth Proportional to 130,365,261.40, 179,859,566.94 and 80,787,545.70

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Solution

The fourth proportional to 130,365,261.40, 179,859,566.94 and 80,787,545.70 is: 111,459,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,365,261.40 : 179,859,566.94 = 80,787,545.70 : x
  2. Step 2: Convert to fraction form
    130,365,261.40/179,859,566.94 = 80,787,545.70/x
  3. Step 3: Cross multiply
    130,365,261.40x = 179,859,566.94 × 80,787,545.70
  4. Step 4: Simplify right side
    130,365,261.40x = 14,530,412,983,747,460
  5. Step 5: Solve for x
    x = 14,530,412,983,747,460/130,365,261.40
  6. Step 6: Final answer
    x = 111,459,240.20

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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.