Home / 28,357,148.40-42,535,722.60-9,188,530.80

Finding the Fourth Proportional to 28,357,148.40, 42,535,722.60 and 9,188,530.80

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Solution

The fourth proportional to 28,357,148.40, 42,535,722.60 and 9,188,530.80 is: 13,782,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357,148.40 : 42,535,722.60 = 9,188,530.80 : x
  2. Step 2: Convert to fraction form
    28,357,148.40/42,535,722.60 = 9,188,530.80/x
  3. Step 3: Cross multiply
    28,357,148.40x = 42,535,722.60 × 9,188,530.80
  4. Step 4: Simplify right side
    28,357,148.40x = 390,840,797,210,356.12
  5. Step 5: Solve for x
    x = 390,840,797,210,356.12/28,357,148.40
  6. Step 6: Final answer
    x = 13,782,796.20

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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.