Home / 393,492,868.65-590,367,008.39-117,146,473.16

Finding the Fourth Proportional to 393,492,868.65, 590,367,008.39 and 117,146,473.16

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Solution

The fourth proportional to 393,492,868.65, 590,367,008.39 and 117,146,473.16 is: 175,757,728.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,492,868.65 : 590,367,008.39 = 117,146,473.16 : x
  2. Step 2: Convert to fraction form
    393,492,868.65/590,367,008.39 = 117,146,473.16/x
  3. Step 3: Cross multiply
    393,492,868.65x = 590,367,008.39 × 117,146,473.16
  4. Step 4: Simplify right side
    393,492,868.65x = 69,159,412,899,371,064
  5. Step 5: Solve for x
    x = 69,159,412,899,371,064/393,492,868.65
  6. Step 6: Final answer
    x = 175,757,728.82

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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.