Home / 21,820,548.57-30,125,259.23-19,399,400.25

Finding the Fourth Proportional to 21,820,548.57, 30,125,259.23 and 19,399,400.25

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Solution

The fourth proportional to 21,820,548.57, 30,125,259.23 and 19,399,400.25 is: 26,782,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,820,548.57 : 30,125,259.23 = 19,399,400.25 : x
  2. Step 2: Convert to fraction form
    21,820,548.57/30,125,259.23 = 19,399,400.25/x
  3. Step 3: Cross multiply
    21,820,548.57x = 30,125,259.23 × 19,399,400.25
  4. Step 4: Simplify right side
    21,820,548.57x = 584,411,961,340,779.88
  5. Step 5: Solve for x
    x = 584,411,961,340,779.88/21,820,548.57
  6. Step 6: Final answer
    x = 26,782,642.95

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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.