Home / 19,697,931.06-26,986,039.69-18,961,320

Finding the Fourth Proportional to 19,697,931.06, 26,986,039.69 and 18,961,320

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Solution

The fourth proportional to 19,697,931.06, 26,986,039.69 and 18,961,320 is: 25,976,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697,931.06 : 26,986,039.69 = 18,961,320 : x
  2. Step 2: Convert to fraction form
    19,697,931.06/26,986,039.69 = 18,961,320/x
  3. Step 3: Cross multiply
    19,697,931.06x = 26,986,039.69 × 18,961,320
  4. Step 4: Simplify right side
    19,697,931.06x = 511,690,933,999,984.19
  5. Step 5: Solve for x
    x = 511,690,933,999,984.19/19,697,931.06
  6. Step 6: Final answer
    x = 25,976,887.24

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.