Home / 15,304,989.59-21,121,485.58-8,690,197.59

Finding the Fourth Proportional to 15,304,989.59, 21,121,485.58 and 8,690,197.59

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Solution

The fourth proportional to 15,304,989.59, 21,121,485.58 and 8,690,197.59 is: 11,992,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304,989.59 : 21,121,485.58 = 8,690,197.59 : x
  2. Step 2: Convert to fraction form
    15,304,989.59/21,121,485.58 = 8,690,197.59/x
  3. Step 3: Cross multiply
    15,304,989.59x = 21,121,485.58 × 8,690,197.59
  4. Step 4: Simplify right side
    15,304,989.59x = 183,549,883,095,398.50
  5. Step 5: Solve for x
    x = 183,549,883,095,398.50/15,304,989.59
  6. Step 6: Final answer
    x = 11,992,813.33

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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.