Home / 20,506,519.70-30,759,779.55-20,187,655.10

Finding the Fourth Proportional to 20,506,519.70, 30,759,779.55 and 20,187,655.10

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Solution

The fourth proportional to 20,506,519.70, 30,759,779.55 and 20,187,655.10 is: 30,281,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506,519.70 : 30,759,779.55 = 20,187,655.10 : x
  2. Step 2: Convert to fraction form
    20,506,519.70/30,759,779.55 = 20,187,655.10/x
  3. Step 3: Cross multiply
    20,506,519.70x = 30,759,779.55 × 20,187,655.10
  4. Step 4: Simplify right side
    20,506,519.70x = 620,967,820,507,433.25
  5. Step 5: Solve for x
    x = 620,967,820,507,433.25/20,506,519.70
  6. Step 6: Final answer
    x = 30,281,482.65

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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.