Home / 60,631,906.40-90,948,637.20-20,242,390.40

Finding the Fourth Proportional to 60,631,906.40, 90,948,637.20 and 20,242,390.40

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Solution

The fourth proportional to 60,631,906.40, 90,948,637.20 and 20,242,390.40 is: 30,363,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,631,906.40 : 90,948,637.20 = 20,242,390.40 : x
  2. Step 2: Convert to fraction form
    60,631,906.40/90,948,637.20 = 20,242,390.40/x
  3. Step 3: Cross multiply
    60,631,906.40x = 90,948,637.20 × 20,242,390.40
  4. Step 4: Simplify right side
    60,631,906.40x = 1,841,017,820,550,362.75
  5. Step 5: Solve for x
    x = 1,841,017,820,550,362.75/60,631,906.40
  6. Step 6: Final answer
    x = 30,363,845.21

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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.