Home / 21,821,476.32-30,126,539.52-19,400,328

Finding the Fourth Proportional to 21,821,476.32, 30,126,539.52 and 19,400,328

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Solution

The fourth proportional to 21,821,476.32, 30,126,539.52 and 19,400,328 is: 26,783,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821,476.32 : 30,126,539.52 = 19,400,328 : x
  2. Step 2: Convert to fraction form
    21,821,476.32/30,126,539.52 = 19,400,328/x
  3. Step 3: Cross multiply
    21,821,476.32x = 30,126,539.52 × 19,400,328
  4. Step 4: Simplify right side
    21,821,476.32x = 584,464,748,192,962.50
  5. Step 5: Solve for x
    x = 584,464,748,192,962.50/21,821,476.32
  6. Step 6: Final answer
    x = 26,783,923.31

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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.