Home / 42,906,492.60-64,356,786.45-13,759,906.20

Finding the Fourth Proportional to 42,906,492.60, 64,356,786.45 and 13,759,906.20

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Solution

The fourth proportional to 42,906,492.60, 64,356,786.45 and 13,759,906.20 is: 20,638,912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,906,492.60 : 64,356,786.45 = 13,759,906.20 : x
  2. Step 2: Convert to fraction form
    42,906,492.60/64,356,786.45 = 13,759,906.20/x
  3. Step 3: Cross multiply
    42,906,492.60x = 64,356,786.45 × 13,759,906.20
  4. Step 4: Simplify right side
    42,906,492.60x = 885,543,344,885,431
  5. Step 5: Solve for x
    x = 885,543,344,885,431/42,906,492.60
  6. Step 6: Final answer
    x = 20,638,912.46

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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.