Home / 30,238,309.80-45,357,464.70-20,034,642.60

Finding the Fourth Proportional to 30,238,309.80, 45,357,464.70 and 20,034,642.60

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Solution

The fourth proportional to 30,238,309.80, 45,357,464.70 and 20,034,642.60 is: 30,051,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238,309.80 : 45,357,464.70 = 20,034,642.60 : x
  2. Step 2: Convert to fraction form
    30,238,309.80/45,357,464.70 = 20,034,642.60/x
  3. Step 3: Cross multiply
    30,238,309.80x = 45,357,464.70 × 20,034,642.60
  4. Step 4: Simplify right side
    30,238,309.80x = 908,720,594,506,616.38
  5. Step 5: Solve for x
    x = 908,720,594,506,616.38/30,238,309.80
  6. Step 6: Final answer
    x = 30,051,963.90

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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.