Home / 91,663,655.48-126,828,943.09-79,927,396.88

Finding the Fourth Proportional to 91,663,655.48, 126,828,943.09 and 79,927,396.88

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Solution

The fourth proportional to 91,663,655.48, 126,828,943.09 and 79,927,396.88 is: 110,590,257.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,663,655.48 : 126,828,943.09 = 79,927,396.88 : x
  2. Step 2: Convert to fraction form
    91,663,655.48/126,828,943.09 = 79,927,396.88/x
  3. Step 3: Cross multiply
    91,663,655.48x = 126,828,943.09 × 79,927,396.88
  4. Step 4: Simplify right side
    91,663,655.48x = 10,137,107,270,225,364
  5. Step 5: Solve for x
    x = 10,137,107,270,225,364/91,663,655.48
  6. Step 6: Final answer
    x = 110,590,257.58

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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.