Home / 100,356,205.07-138,233,521.80-70,936,959.92

Finding the Fourth Proportional to 100,356,205.07, 138,233,521.80 and 70,936,959.92

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Solution

The fourth proportional to 100,356,205.07, 138,233,521.80 and 70,936,959.92 is: 97,710,607.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,356,205.07 : 138,233,521.80 = 70,936,959.92 : x
  2. Step 2: Convert to fraction form
    100,356,205.07/138,233,521.80 = 70,936,959.92/x
  3. Step 3: Cross multiply
    100,356,205.07x = 138,233,521.80 × 70,936,959.92
  4. Step 4: Simplify right side
    100,356,205.07x = 9,805,865,794,835,880
  5. Step 5: Solve for x
    x = 9,805,865,794,835,880/100,356,205.07
  6. Step 6: Final answer
    x = 97,710,607.81

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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.