Home / 28,371,928.80-42,563,422.80-12,197,848.80

Finding the Fourth Proportional to 28,371,928.80, 42,563,422.80 and 12,197,848.80

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Solution

The fourth proportional to 28,371,928.80, 42,563,422.80 and 12,197,848.80 is: 18,299,150.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,928.80 : 42,563,422.80 = 12,197,848.80 : x
  2. Step 2: Convert to fraction form
    28,371,928.80/42,563,422.80 = 12,197,848.80/x
  3. Step 3: Cross multiply
    28,371,928.80x = 42,563,422.80 × 12,197,848.80
  4. Step 4: Simplify right side
    28,371,928.80x = 519,182,195,724,872.62
  5. Step 5: Solve for x
    x = 519,182,195,724,872.62/28,371,928.80
  6. Step 6: Final answer
    x = 18,299,150.52

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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.