Home / 33,221,638.40-49,832,457.60-21,742,512.80

Finding the Fourth Proportional to 33,221,638.40, 49,832,457.60 and 21,742,512.80

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Solution

The fourth proportional to 33,221,638.40, 49,832,457.60 and 21,742,512.80 is: 32,613,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,221,638.40 : 49,832,457.60 = 21,742,512.80 : x
  2. Step 2: Convert to fraction form
    33,221,638.40/49,832,457.60 = 21,742,512.80/x
  3. Step 3: Cross multiply
    33,221,638.40x = 49,832,457.60 × 21,742,512.80
  4. Step 4: Simplify right side
    33,221,638.40x = 1,083,482,847,223,457.38
  5. Step 5: Solve for x
    x = 1,083,482,847,223,457.38/33,221,638.40
  6. Step 6: Final answer
    x = 32,613,769.20

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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.