Home / 161,685,128.40-242,529,766.20-53,979,752.40

Finding the Fourth Proportional to 161,685,128.40, 242,529,766.20 and 53,979,752.40

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Solution

The fourth proportional to 161,685,128.40, 242,529,766.20 and 53,979,752.40 is: 80,970,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,685,128.40 : 242,529,766.20 = 53,979,752.40 : x
  2. Step 2: Convert to fraction form
    161,685,128.40/242,529,766.20 = 53,979,752.40/x
  3. Step 3: Cross multiply
    161,685,128.40x = 242,529,766.20 × 53,979,752.40
  4. Step 4: Simplify right side
    161,685,128.40x = 13,091,696,729,105,888
  5. Step 5: Solve for x
    x = 13,091,696,729,105,888/161,685,128.40
  6. Step 6: Final answer
    x = 80,970,320.89

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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.