Home / 247,239,109.80-370,858,664.70-155,867,999.40

Finding the Fourth Proportional to 247,239,109.80, 370,858,664.70 and 155,867,999.40

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Solution

The fourth proportional to 247,239,109.80, 370,858,664.70 and 155,867,999.40 is: 233,801,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,239,109.80 : 370,858,664.70 = 155,867,999.40 : x
  2. Step 2: Convert to fraction form
    247,239,109.80/370,858,664.70 = 155,867,999.40/x
  3. Step 3: Cross multiply
    247,239,109.80x = 370,858,664.70 × 155,867,999.40
  4. Step 4: Simplify right side
    247,239,109.80x = 57,804,998,126,944,400
  5. Step 5: Solve for x
    x = 57,804,998,126,944,400/247,239,109.80
  6. Step 6: Final answer
    x = 233,801,999.10

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1.5x scale

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.