Home / 15,628,690.80-21,560,723.07-9,430,280.16

Finding the Fourth Proportional to 15,628,690.80, 21,560,723.07 and 9,430,280.16

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Solution

The fourth proportional to 15,628,690.80, 21,560,723.07 and 9,430,280.16 is: 13,009,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628,690.80 : 21,560,723.07 = 9,430,280.16 : x
  2. Step 2: Convert to fraction form
    15,628,690.80/21,560,723.07 = 9,430,280.16/x
  3. Step 3: Cross multiply
    15,628,690.80x = 21,560,723.07 × 9,430,280.16
  4. Step 4: Simplify right side
    15,628,690.80x = 203,323,659,002,275.31
  5. Step 5: Solve for x
    x = 203,323,659,002,275.31/15,628,690.80
  6. Step 6: Final answer
    x = 13,009,641.15

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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.