Home / 100,101,836.40-150,152,754.60-78,602,751.60

Finding the Fourth Proportional to 100,101,836.40, 150,152,754.60 and 78,602,751.60

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Solution

The fourth proportional to 100,101,836.40, 150,152,754.60 and 78,602,751.60 is: 117,904,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,101,836.40 : 150,152,754.60 = 78,602,751.60 : x
  2. Step 2: Convert to fraction form
    100,101,836.40/150,152,754.60 = 78,602,751.60/x
  3. Step 3: Cross multiply
    100,101,836.40x = 150,152,754.60 × 78,602,751.60
  4. Step 4: Simplify right side
    100,101,836.40x = 11,802,419,671,879,556
  5. Step 5: Solve for x
    x = 11,802,419,671,879,556/100,101,836.40
  6. Step 6: Final answer
    x = 117,904,127.40

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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.