Home / 212,822,007.40-319,374,728.70-97,747,316.20

Finding the Fourth Proportional to 212,822,007.40, 319,374,728.70 and 97,747,316.20

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Solution

The fourth proportional to 212,822,007.40, 319,374,728.70 and 97,747,316.20 is: 146,686,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,822,007.40 : 319,374,728.70 = 97,747,316.20 : x
  2. Step 2: Convert to fraction form
    212,822,007.40/319,374,728.70 = 97,747,316.20/x
  3. Step 3: Cross multiply
    212,822,007.40x = 319,374,728.70 × 97,747,316.20
  4. Step 4: Simplify right side
    212,822,007.40x = 31,218,022,592,528,116
  5. Step 5: Solve for x
    x = 31,218,022,592,528,116/212,822,007.40
  6. Step 6: Final answer
    x = 146,686,063.97

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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.