Home / 28,483,404.80-42,725,107.20-20,869,145.60

Finding the Fourth Proportional to 28,483,404.80, 42,725,107.20 and 20,869,145.60

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Solution

The fourth proportional to 28,483,404.80, 42,725,107.20 and 20,869,145.60 is: 31,303,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483,404.80 : 42,725,107.20 = 20,869,145.60 : x
  2. Step 2: Convert to fraction form
    28,483,404.80/42,725,107.20 = 20,869,145.60/x
  3. Step 3: Cross multiply
    28,483,404.80x = 42,725,107.20 × 20,869,145.60
  4. Step 4: Simplify right side
    28,483,404.80x = 891,636,482,932,408.50
  5. Step 5: Solve for x
    x = 891,636,482,932,408.50/28,483,404.80
  6. Step 6: Final answer
    x = 31,303,718.40

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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.