Home / 20,501,434.44-28,292,570-11,334,667.68

Finding the Fourth Proportional to 20,501,434.44, 28,292,570 and 11,334,667.68

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Solution

The fourth proportional to 20,501,434.44, 28,292,570 and 11,334,667.68 is: 15,642,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,434.44 : 28,292,570 = 11,334,667.68 : x
  2. Step 2: Convert to fraction form
    20,501,434.44/28,292,570 = 11,334,667.68/x
  3. Step 3: Cross multiply
    20,501,434.44x = 28,292,570 × 11,334,667.68
  4. Step 4: Simplify right side
    20,501,434.44x = 320,686,878,763,137.56
  5. Step 5: Solve for x
    x = 320,686,878,763,137.56/20,501,434.44
  6. Step 6: Final answer
    x = 15,642,167.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.