Home / 642,168,925,049.71-886,209,912,166.02-349,210,981,858.06

Finding the Fourth Proportional to 642,168,925,049.71, 886,209,912,166.02 and 349,210,981,858.06

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Solution

The fourth proportional to 642,168,925,049.71, 886,209,912,166.02 and 349,210,981,858.06 is: 481,920,288,397.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,168,925,049.71 : 886,209,912,166.02 = 349,210,981,858.06 : x
  2. Step 2: Convert to fraction form
    642,168,925,049.71/886,209,912,166.02 = 349,210,981,858.06/x
  3. Step 3: Cross multiply
    642,168,925,049.71x = 886,209,912,166.02 × 349,210,981,858.06
  4. Step 4: Simplify right side
    642,168,925,049.71x = 309,474,233,559,840,951,631,872
  5. Step 5: Solve for x
    x = 309,474,233,559,840,951,631,872/642,168,925,049.71
  6. Step 6: Final answer
    x = 481,920,288,397.46

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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.