Home / 128,902,345.57-193,351,623.83-31,858,061.52

Finding the Fourth Proportional to 128,902,345.57, 193,351,623.83 and 31,858,061.52

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Solution

The fourth proportional to 128,902,345.57, 193,351,623.83 and 31,858,061.52 is: 47,786,624.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,902,345.57 : 193,351,623.83 = 31,858,061.52 : x
  2. Step 2: Convert to fraction form
    128,902,345.57/193,351,623.83 = 31,858,061.52/x
  3. Step 3: Cross multiply
    128,902,345.57x = 193,351,623.83 × 31,858,061.52
  4. Step 4: Simplify right side
    128,902,345.57x = 6,159,807,926,968,038
  5. Step 5: Solve for x
    x = 6,159,807,926,968,038/128,902,345.57
  6. Step 6: Final answer
    x = 47,786,624.05

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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.