Home / 103,439,368.24-142,882,587.32-76,670,964.34

Finding the Fourth Proportional to 103,439,368.24, 142,882,587.32 and 76,670,964.34

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Solution

The fourth proportional to 103,439,368.24, 142,882,587.32 and 76,670,964.34 is: 105,906,928.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439,368.24 : 142,882,587.32 = 76,670,964.34 : x
  2. Step 2: Convert to fraction form
    103,439,368.24/142,882,587.32 = 76,670,964.34/x
  3. Step 3: Cross multiply
    103,439,368.24x = 142,882,587.32 × 76,670,964.34
  4. Step 4: Simplify right side
    103,439,368.24x = 10,954,945,757,218,656
  5. Step 5: Solve for x
    x = 10,954,945,757,218,656/103,439,368.24
  6. Step 6: Final answer
    x = 105,906,928.32

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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.