Home / 198,005,639.80-297,043,889.10-83,001,807.40

Finding the Fourth Proportional to 198,005,639.80, 297,043,889.10 and 83,001,807.40

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Solution

The fourth proportional to 198,005,639.80, 297,043,889.10 and 83,001,807.40 is: 124,517,562.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,005,639.80 : 297,043,889.10 = 83,001,807.40 : x
  2. Step 2: Convert to fraction form
    198,005,639.80/297,043,889.10 = 83,001,807.40/x
  3. Step 3: Cross multiply
    198,005,639.80x = 297,043,889.10 × 83,001,807.40
  4. Step 4: Simplify right side
    198,005,639.80x = 24,655,179,672,425,164
  5. Step 5: Solve for x
    x = 24,655,179,672,425,164/198,005,639.80
  6. Step 6: Final answer
    x = 124,517,562.72

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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.