Home / 642,168,925,049.10-886,209,912,165.15-349,210,981,857.43

Finding the Fourth Proportional to 642,168,925,049.10, 886,209,912,165.15 and 349,210,981,857.43

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Solution

The fourth proportional to 642,168,925,049.10, 886,209,912,165.15 and 349,210,981,857.43 is: 481,920,288,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,168,925,049.10 : 886,209,912,165.15 = 349,210,981,857.43 : x
  2. Step 2: Convert to fraction form
    642,168,925,049.10/886,209,912,165.15 = 349,210,981,857.43/x
  3. Step 3: Cross multiply
    642,168,925,049.10x = 886,209,912,165.15 × 349,210,981,857.43
  4. Step 4: Simplify right side
    642,168,925,049.10x = 309,474,233,558,978,804,056,064
  5. Step 5: Solve for x
    x = 309,474,233,558,978,804,056,064/642,168,925,049.10
  6. Step 6: Final answer
    x = 481,920,288,396.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.