Home / 28,352,086.75-42,528,130.13-8,157,328.75

Finding the Fourth Proportional to 28,352,086.75, 42,528,130.13 and 8,157,328.75

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Solution

The fourth proportional to 28,352,086.75, 42,528,130.13 and 8,157,328.75 is: 12,235,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352,086.75 : 42,528,130.13 = 8,157,328.75 : x
  2. Step 2: Convert to fraction form
    28,352,086.75/42,528,130.13 = 8,157,328.75/x
  3. Step 3: Cross multiply
    28,352,086.75x = 42,528,130.13 × 8,157,328.75
  4. Step 4: Simplify right side
    28,352,086.75x = 346,915,938,593,190.25
  5. Step 5: Solve for x
    x = 346,915,938,593,190.25/28,352,086.75
  6. Step 6: Final answer
    x = 12,235,993.13

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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.