Home / 28,512,480.80-42,768,332.40-9,343,863.20

Finding the Fourth Proportional to 28,512,480.80, 42,768,332.40 and 9,343,863.20

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Solution

The fourth proportional to 28,512,480.80, 42,768,332.40 and 9,343,863.20 is: 14,015,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,480.80 : 42,768,332.40 = 9,343,863.20 : x
  2. Step 2: Convert to fraction form
    28,512,480.80/42,768,332.40 = 9,343,863.20/x
  3. Step 3: Cross multiply
    28,512,480.80x = 42,768,332.40 × 9,343,863.20
  4. Step 4: Simplify right side
    28,512,480.80x = 399,621,447,237,727.62
  5. Step 5: Solve for x
    x = 399,621,447,237,727.62/28,512,480.80
  6. Step 6: Final answer
    x = 14,015,667.39

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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.