Home / 21,135,228.60-31,681,847.70-9,755,830.20

Finding the Fourth Proportional to 21,135,228.60, 31,681,847.70 and 9,755,830.20

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Solution

The fourth proportional to 21,135,228.60, 31,681,847.70 and 9,755,830.20 is: 14,624,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135,228.60 : 31,681,847.70 = 9,755,830.20 : x
  2. Step 2: Convert to fraction form
    21,135,228.60/31,681,847.70 = 9,755,830.20/x
  3. Step 3: Cross multiply
    21,135,228.60x = 31,681,847.70 × 9,755,830.20
  4. Step 4: Simplify right side
    21,135,228.60x = 309,082,726,583,460.50
  5. Step 5: Solve for x
    x = 309,082,726,583,460.50/21,135,228.60
  6. Step 6: Final answer
    x = 14,624,054.11

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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.