Home / 21,201,854.40-31,802,781.60-14,483,390.40

Finding the Fourth Proportional to 21,201,854.40, 31,802,781.60 and 14,483,390.40

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Solution

The fourth proportional to 21,201,854.40, 31,802,781.60 and 14,483,390.40 is: 21,725,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201,854.40 : 31,802,781.60 = 14,483,390.40 : x
  2. Step 2: Convert to fraction form
    21,201,854.40/31,802,781.60 = 14,483,390.40/x
  3. Step 3: Cross multiply
    21,201,854.40x = 31,802,781.60 × 14,483,390.40
  4. Step 4: Simplify right side
    21,201,854.40x = 460,612,101,718,736.69
  5. Step 5: Solve for x
    x = 460,612,101,718,736.69/21,201,854.40
  6. Step 6: Final answer
    x = 21,725,085.60

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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.