Home / 12,455,812.80-18,681,969.60-3,937,010.40

Finding the Fourth Proportional to 12,455,812.80, 18,681,969.60 and 3,937,010.40

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Solution

The fourth proportional to 12,455,812.80, 18,681,969.60 and 3,937,010.40 is: 5,904,962.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,812.80 : 18,681,969.60 = 3,937,010.40 : x
  2. Step 2: Convert to fraction form
    12,455,812.80/18,681,969.60 = 3,937,010.40/x
  3. Step 3: Cross multiply
    12,455,812.80x = 18,681,969.60 × 3,937,010.40
  4. Step 4: Simplify right side
    12,455,812.80x = 73,551,108,607,683.84
  5. Step 5: Solve for x
    x = 73,551,108,607,683.84/12,455,812.80
  6. Step 6: Final answer
    x = 5,904,962.59

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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.