Home / 7,088,992-9,781,518.40-3,991,033.60

Finding the Fourth Proportional to 7,088,992, 9,781,518.40 and 3,991,033.60

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Solution

The fourth proportional to 7,088,992, 9,781,518.40 and 3,991,033.60 is: 5,506,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088,992 : 9,781,518.40 = 3,991,033.60 : x
  2. Step 2: Convert to fraction form
    7,088,992/9,781,518.40 = 3,991,033.60/x
  3. Step 3: Cross multiply
    7,088,992x = 9,781,518.40 × 3,991,033.60
  4. Step 4: Simplify right side
    7,088,992x = 39,038,368,593,418.24
  5. Step 5: Solve for x
    x = 39,038,368,593,418.24/7,088,992
  6. Step 6: Final answer
    x = 5,506,899.80

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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.