Home / 100,653,938.66-138,899,621.73-60,984,955.98

Finding the Fourth Proportional to 100,653,938.66, 138,899,621.73 and 60,984,955.98

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Solution

The fourth proportional to 100,653,938.66, 138,899,621.73 and 60,984,955.98 is: 84,157,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,653,938.66 : 138,899,621.73 = 60,984,955.98 : x
  2. Step 2: Convert to fraction form
    100,653,938.66/138,899,621.73 = 60,984,955.98/x
  3. Step 3: Cross multiply
    100,653,938.66x = 138,899,621.73 × 60,984,955.98
  4. Step 4: Simplify right side
    100,653,938.66x = 8,470,787,315,843,278
  5. Step 5: Solve for x
    x = 8,470,787,315,843,278/100,653,938.66
  6. Step 6: Final answer
    x = 84,157,534.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.