Home / 20,736,085.60-31,104,128.40-14,344,559.20

Finding the Fourth Proportional to 20,736,085.60, 31,104,128.40 and 14,344,559.20

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Solution

The fourth proportional to 20,736,085.60, 31,104,128.40 and 14,344,559.20 is: 21,516,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,085.60 : 31,104,128.40 = 14,344,559.20 : x
  2. Step 2: Convert to fraction form
    20,736,085.60/31,104,128.40 = 14,344,559.20/x
  3. Step 3: Cross multiply
    20,736,085.60x = 31,104,128.40 × 14,344,559.20
  4. Step 4: Simplify right side
    20,736,085.60x = 446,175,011,198,201.25
  5. Step 5: Solve for x
    x = 446,175,011,198,201.25/20,736,085.60
  6. Step 6: Final answer
    x = 21,516,838.80

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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.