Home / 39,139,743.60-58,709,615.40-21,223,839.60

Finding the Fourth Proportional to 39,139,743.60, 58,709,615.40 and 21,223,839.60

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Solution

The fourth proportional to 39,139,743.60, 58,709,615.40 and 21,223,839.60 is: 31,835,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,743.60 : 58,709,615.40 = 21,223,839.60 : x
  2. Step 2: Convert to fraction form
    39,139,743.60/58,709,615.40 = 21,223,839.60/x
  3. Step 3: Cross multiply
    39,139,743.60x = 58,709,615.40 × 21,223,839.60
  4. Step 4: Simplify right side
    39,139,743.60x = 1,246,043,460,227,290
  5. Step 5: Solve for x
    x = 1,246,043,460,227,290/39,139,743.60
  6. Step 6: Final answer
    x = 31,835,759.40

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Similar ratio
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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.