Home / 28,352,085.75-42,528,128.63-8,157,327.75

Finding the Fourth Proportional to 28,352,085.75, 42,528,128.63 and 8,157,327.75

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Solution

The fourth proportional to 28,352,085.75, 42,528,128.63 and 8,157,327.75 is: 12,235,991.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352,085.75 : 42,528,128.63 = 8,157,327.75 : x
  2. Step 2: Convert to fraction form
    28,352,085.75/42,528,128.63 = 8,157,327.75/x
  3. Step 3: Cross multiply
    28,352,085.75x = 42,528,128.63 × 8,157,327.75
  4. Step 4: Simplify right side
    28,352,085.75x = 346,915,883,788,281.88
  5. Step 5: Solve for x
    x = 346,915,883,788,281.88/28,352,085.75
  6. Step 6: Final answer
    x = 12,235,991.63

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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.