Home / 128,715,302.70-193,072,954.05-118,133,721.90

Finding the Fourth Proportional to 128,715,302.70, 193,072,954.05 and 118,133,721.90

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Solution

The fourth proportional to 128,715,302.70, 193,072,954.05 and 118,133,721.90 is: 177,200,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,715,302.70 : 193,072,954.05 = 118,133,721.90 : x
  2. Step 2: Convert to fraction form
    128,715,302.70/193,072,954.05 = 118,133,721.90/x
  3. Step 3: Cross multiply
    128,715,302.70x = 193,072,954.05 × 118,133,721.90
  4. Step 4: Simplify right side
    128,715,302.70x = 22,808,426,660,154,180
  5. Step 5: Solve for x
    x = 22,808,426,660,154,180/128,715,302.70
  6. Step 6: Final answer
    x = 177,200,582.85

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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.