Home / 28,317,815.40-42,487,220.70-11,290,708.20

Finding the Fourth Proportional to 28,317,815.40, 42,487,220.70 and 11,290,708.20

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Solution

The fourth proportional to 28,317,815.40, 42,487,220.70 and 11,290,708.20 is: 16,940,247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317,815.40 : 42,487,220.70 = 11,290,708.20 : x
  2. Step 2: Convert to fraction form
    28,317,815.40/42,487,220.70 = 11,290,708.20/x
  3. Step 3: Cross multiply
    28,317,815.40x = 42,487,220.70 × 11,290,708.20
  4. Step 4: Simplify right side
    28,317,815.40x = 479,710,811,152,699.75
  5. Step 5: Solve for x
    x = 479,710,811,152,699.75/28,317,815.40
  6. Step 6: Final answer
    x = 16,940,247.84

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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.