Home / 858,510,109.40-1,287,933,125.70-367,222,429.40

Finding the Fourth Proportional to 858,510,109.40, 1,287,933,125.70 and 367,222,429.40

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Solution

The fourth proportional to 858,510,109.40, 1,287,933,125.70 and 367,222,429.40 is: 550,905,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,510,109.40 : 1,287,933,125.70 = 367,222,429.40 : x
  2. Step 2: Convert to fraction form
    858,510,109.40/1,287,933,125.70 = 367,222,429.40/x
  3. Step 3: Cross multiply
    858,510,109.40x = 1,287,933,125.70 × 367,222,429.40
  4. Step 4: Simplify right side
    858,510,109.40x = 472,957,931,324,289,536
  5. Step 5: Solve for x
    x = 472,957,931,324,289,536/858,510,109.40
  6. Step 6: Final answer
    x = 550,905,488.64

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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.