Home / 393,492,869.65-590,367,009.89-117,146,474.16

Finding the Fourth Proportional to 393,492,869.65, 590,367,009.89 and 117,146,474.16

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Solution

The fourth proportional to 393,492,869.65, 590,367,009.89 and 117,146,474.16 is: 175,757,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,492,869.65 : 590,367,009.89 = 117,146,474.16 : x
  2. Step 2: Convert to fraction form
    393,492,869.65/590,367,009.89 = 117,146,474.16/x
  3. Step 3: Cross multiply
    393,492,869.65x = 590,367,009.89 × 117,146,474.16
  4. Step 4: Simplify right side
    393,492,869.65x = 69,159,413,668,995,344
  5. Step 5: Solve for x
    x = 69,159,413,668,995,344/393,492,869.65
  6. Step 6: Final answer
    x = 175,757,730.33

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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.