Home / 20,219,703.60-30,329,555.40-14,480,140.80

Finding the Fourth Proportional to 20,219,703.60, 30,329,555.40 and 14,480,140.80

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Solution

The fourth proportional to 20,219,703.60, 30,329,555.40 and 14,480,140.80 is: 21,720,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,703.60 : 30,329,555.40 = 14,480,140.80 : x
  2. Step 2: Convert to fraction form
    20,219,703.60/30,329,555.40 = 14,480,140.80/x
  3. Step 3: Cross multiply
    20,219,703.60x = 30,329,555.40 × 14,480,140.80
  4. Step 4: Simplify right side
    20,219,703.60x = 439,176,232,593,400.31
  5. Step 5: Solve for x
    x = 439,176,232,593,400.31/20,219,703.60
  6. Step 6: Final answer
    x = 21,720,211.20

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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.