Home / 28,570,378-42,866,921.76-9,142,597.12

Finding the Fourth Proportional to 28,570,378, 42,866,921.76 and 9,142,597.12

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Solution

The fourth proportional to 28,570,378, 42,866,921.76 and 9,142,597.12 is: 13,717,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570,378 : 42,866,921.76 = 9,142,597.12 : x
  2. Step 2: Convert to fraction form
    28,570,378/42,866,921.76 = 9,142,597.12/x
  3. Step 3: Cross multiply
    28,570,378x = 42,866,921.76 × 9,142,597.12
  4. Step 4: Simplify right side
    28,570,378x = 391,914,995,426,241.25
  5. Step 5: Solve for x
    x = 391,914,995,426,241.25/28,570,378
  6. Step 6: Final answer
    x = 13,717,529.23

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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.