Home / 15,338,415.42-21,174,683.58-9,539,065.44

Finding the Fourth Proportional to 15,338,415.42, 21,174,683.58 and 9,539,065.44

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Solution

The fourth proportional to 15,338,415.42, 21,174,683.58 and 9,539,065.44 is: 13,168,680.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,415.42 : 21,174,683.58 = 9,539,065.44 : x
  2. Step 2: Convert to fraction form
    15,338,415.42/21,174,683.58 = 9,539,065.44/x
  3. Step 3: Cross multiply
    15,338,415.42x = 21,174,683.58 × 9,539,065.44
  4. Step 4: Simplify right side
    15,338,415.42x = 201,986,692,340,913.44
  5. Step 5: Solve for x
    x = 201,986,692,340,913.44/15,338,415.42
  6. Step 6: Final answer
    x = 13,168,680.52

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Double scale
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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.