Home / 120,251,011.80-180,376,517.70-103,032,323.40

Finding the Fourth Proportional to 120,251,011.80, 180,376,517.70 and 103,032,323.40

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Solution

The fourth proportional to 120,251,011.80, 180,376,517.70 and 103,032,323.40 is: 154,548,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,251,011.80 : 180,376,517.70 = 103,032,323.40 : x
  2. Step 2: Convert to fraction form
    120,251,011.80/180,376,517.70 = 103,032,323.40/x
  3. Step 3: Cross multiply
    120,251,011.80x = 180,376,517.70 × 103,032,323.40
  4. Step 4: Simplify right side
    120,251,011.80x = 18,584,611,705,432,224
  5. Step 5: Solve for x
    x = 18,584,611,705,432,224/120,251,011.80
  6. Step 6: Final answer
    x = 154,548,485.10

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1.5x scale

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.