Home / 28,352,005.20-42,528,007.80-16,986,603.60

Finding the Fourth Proportional to 28,352,005.20, 42,528,007.80 and 16,986,603.60

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Solution

The fourth proportional to 28,352,005.20, 42,528,007.80 and 16,986,603.60 is: 25,479,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352,005.20 : 42,528,007.80 = 16,986,603.60 : x
  2. Step 2: Convert to fraction form
    28,352,005.20/42,528,007.80 = 16,986,603.60/x
  3. Step 3: Cross multiply
    28,352,005.20x = 42,528,007.80 × 16,986,603.60
  4. Step 4: Simplify right side
    28,352,005.20x = 722,406,410,396,308.12
  5. Step 5: Solve for x
    x = 722,406,410,396,308.12/28,352,005.20
  6. Step 6: Final answer
    x = 25,479,905.40

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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.