Home / 91,111,340.40-136,678,998.60-33,643,978.80

Finding the Fourth Proportional to 91,111,340.40, 136,678,998.60 and 33,643,978.80

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Solution

The fourth proportional to 91,111,340.40, 136,678,998.60 and 33,643,978.80 is: 50,470,394.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,111,340.40 : 136,678,998.60 = 33,643,978.80 : x
  2. Step 2: Convert to fraction form
    91,111,340.40/136,678,998.60 = 33,643,978.80/x
  3. Step 3: Cross multiply
    91,111,340.40x = 136,678,998.60 × 33,643,978.80
  4. Step 4: Simplify right side
    91,111,340.40x = 4,598,425,331,303,629
  5. Step 5: Solve for x
    x = 4,598,425,331,303,629/91,111,340.40
  6. Step 6: Final answer
    x = 50,470,394.92

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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.