Home / 12,780,173.12-19,156,056.93-9,737,505.72

Finding the Fourth Proportional to 12,780,173.12, 19,156,056.93 and 9,737,505.72

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Solution

The fourth proportional to 12,780,173.12, 19,156,056.93 and 9,737,505.72 is: 14,595,437.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,173.12 : 19,156,056.93 = 9,737,505.72 : x
  2. Step 2: Convert to fraction form
    12,780,173.12/19,156,056.93 = 9,737,505.72/x
  3. Step 3: Cross multiply
    12,780,173.12x = 19,156,056.93 × 9,737,505.72
  4. Step 4: Simplify right side
    12,780,173.12x = 186,532,213,928,520.66
  5. Step 5: Solve for x
    x = 186,532,213,928,520.66/12,780,173.12
  6. Step 6: Final answer
    x = 14,595,437.19

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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.