Home / 12,820,725.90-17,692,604.28-7,019,509.14

Finding the Fourth Proportional to 12,820,725.90, 17,692,604.28 and 7,019,509.14

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Solution

The fourth proportional to 12,820,725.90, 17,692,604.28 and 7,019,509.14 is: 9,686,924.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,725.90 : 17,692,604.28 = 7,019,509.14 : x
  2. Step 2: Convert to fraction form
    12,820,725.90/17,692,604.28 = 7,019,509.14/x
  3. Step 3: Cross multiply
    12,820,725.90x = 17,692,604.28 × 7,019,509.14
  4. Step 4: Simplify right side
    12,820,725.90x = 124,193,397,453,863.12
  5. Step 5: Solve for x
    x = 124,193,397,453,863.12/12,820,725.90
  6. Step 6: Final answer
    x = 9,686,924.00

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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.