Home / 118,855,110.30-178,282,665.45-81,866,816.70

Finding the Fourth Proportional to 118,855,110.30, 178,282,665.45 and 81,866,816.70

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Solution

The fourth proportional to 118,855,110.30, 178,282,665.45 and 81,866,816.70 is: 122,800,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,855,110.30 : 178,282,665.45 = 81,866,816.70 : x
  2. Step 2: Convert to fraction form
    118,855,110.30/178,282,665.45 = 81,866,816.70/x
  3. Step 3: Cross multiply
    118,855,110.30x = 178,282,665.45 × 81,866,816.70
  4. Step 4: Simplify right side
    118,855,110.30x = 14,595,434,293,182,572
  5. Step 5: Solve for x
    x = 14,595,434,293,182,572/118,855,110.30
  6. Step 6: Final answer
    x = 122,800,225.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.