Home / 28,224,107.60-42,336,161.40-18,146,411.60

Finding the Fourth Proportional to 28,224,107.60, 42,336,161.40 and 18,146,411.60

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Solution

The fourth proportional to 28,224,107.60, 42,336,161.40 and 18,146,411.60 is: 27,219,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224,107.60 : 42,336,161.40 = 18,146,411.60 : x
  2. Step 2: Convert to fraction form
    28,224,107.60/42,336,161.40 = 18,146,411.60/x
  3. Step 3: Cross multiply
    28,224,107.60x = 42,336,161.40 × 18,146,411.60
  4. Step 4: Simplify right side
    28,224,107.60x = 768,249,410,328,432.25
  5. Step 5: Solve for x
    x = 768,249,410,328,432.25/28,224,107.60
  6. Step 6: Final answer
    x = 27,219,617.40

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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.