Home / 141,823,369.40-212,903,015.70-80,461,398.20

Finding the Fourth Proportional to 141,823,369.40, 212,903,015.70 and 80,461,398.20

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Solution

The fourth proportional to 141,823,369.40, 212,903,015.70 and 80,461,398.20 is: 120,787,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,823,369.40 : 212,903,015.70 = 80,461,398.20 : x
  2. Step 2: Convert to fraction form
    141,823,369.40/212,903,015.70 = 80,461,398.20/x
  3. Step 3: Cross multiply
    141,823,369.40x = 212,903,015.70 × 80,461,398.20
  4. Step 4: Simplify right side
    141,823,369.40x = 17,130,474,324,218,552
  5. Step 5: Solve for x
    x = 17,130,474,324,218,552/141,823,369.40
  6. Step 6: Final answer
    x = 120,787,387.84

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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.