Home / 28,355,487.80-42,533,231.70-13,985,439.80

Finding the Fourth Proportional to 28,355,487.80, 42,533,231.70 and 13,985,439.80

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Solution

The fourth proportional to 28,355,487.80, 42,533,231.70 and 13,985,439.80 is: 20,978,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355,487.80 : 42,533,231.70 = 13,985,439.80 : x
  2. Step 2: Convert to fraction form
    28,355,487.80/42,533,231.70 = 13,985,439.80/x
  3. Step 3: Cross multiply
    28,355,487.80x = 42,533,231.70 × 13,985,439.80
  4. Step 4: Simplify right side
    28,355,487.80x = 594,845,951,439,801.75
  5. Step 5: Solve for x
    x = 594,845,951,439,801.75/28,355,487.80
  6. Step 6: Final answer
    x = 20,978,159.70

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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.