Home / 28,107,207.80-42,160,811.70-8,939,902.40

Finding the Fourth Proportional to 28,107,207.80, 42,160,811.70 and 8,939,902.40

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Solution

The fourth proportional to 28,107,207.80, 42,160,811.70 and 8,939,902.40 is: 13,409,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107,207.80 : 42,160,811.70 = 8,939,902.40 : x
  2. Step 2: Convert to fraction form
    28,107,207.80/42,160,811.70 = 8,939,902.40/x
  3. Step 3: Cross multiply
    28,107,207.80x = 42,160,811.70 × 8,939,902.40
  4. Step 4: Simplify right side
    28,107,207.80x = 376,913,541,702,778.12
  5. Step 5: Solve for x
    x = 376,913,541,702,778.12/28,107,207.80
  6. Step 6: Final answer
    x = 13,409,853.60

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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.