Home / 105,538,471.08-158,487,448.86-68,713,045.80

Finding the Fourth Proportional to 105,538,471.08, 158,487,448.86 and 68,713,045.80

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Solution

The fourth proportional to 105,538,471.08, 158,487,448.86 and 68,713,045.80 is: 103,186,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,538,471.08 : 158,487,448.86 = 68,713,045.80 : x
  2. Step 2: Convert to fraction form
    105,538,471.08/158,487,448.86 = 68,713,045.80/x
  3. Step 3: Cross multiply
    105,538,471.08x = 158,487,448.86 × 68,713,045.80
  4. Step 4: Simplify right side
    105,538,471.08x = 10,890,155,332,242,338
  5. Step 5: Solve for x
    x = 10,890,155,332,242,338/105,538,471.08
  6. Step 6: Final answer
    x = 103,186,593.67

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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.