Home / 28,066,528.90-42,099,793.35-12,949,984.90

Finding the Fourth Proportional to 28,066,528.90, 42,099,793.35 and 12,949,984.90

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Solution

The fourth proportional to 28,066,528.90, 42,099,793.35 and 12,949,984.90 is: 19,424,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,528.90 : 42,099,793.35 = 12,949,984.90 : x
  2. Step 2: Convert to fraction form
    28,066,528.90/42,099,793.35 = 12,949,984.90/x
  3. Step 3: Cross multiply
    28,066,528.90x = 42,099,793.35 × 12,949,984.90
  4. Step 4: Simplify right side
    28,066,528.90x = 545,191,688,175,620.44
  5. Step 5: Solve for x
    x = 545,191,688,175,620.44/28,066,528.90
  6. Step 6: Final answer
    x = 19,424,977.35

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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.