Home / 20,581,938.80-30,872,908.20-5,435,870.30

Finding the Fourth Proportional to 20,581,938.80, 30,872,908.20 and 5,435,870.30

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Solution

The fourth proportional to 20,581,938.80, 30,872,908.20 and 5,435,870.30 is: 8,153,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581,938.80 : 30,872,908.20 = 5,435,870.30 : x
  2. Step 2: Convert to fraction form
    20,581,938.80/30,872,908.20 = 5,435,870.30/x
  3. Step 3: Cross multiply
    20,581,938.80x = 30,872,908.20 × 5,435,870.30
  4. Step 4: Simplify right side
    20,581,938.80x = 167,821,124,759,006.44
  5. Step 5: Solve for x
    x = 167,821,124,759,006.44/20,581,938.80
  6. Step 6: Final answer
    x = 8,153,805.45

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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.