Home / 13,565,560.15-18,720,643.39-7,370,710.76

Finding the Fourth Proportional to 13,565,560.15, 18,720,643.39 and 7,370,710.76

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Solution

The fourth proportional to 13,565,560.15, 18,720,643.39 and 7,370,710.76 is: 10,171,673.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,560.15 : 18,720,643.39 = 7,370,710.76 : x
  2. Step 2: Convert to fraction form
    13,565,560.15/18,720,643.39 = 7,370,710.76/x
  3. Step 3: Cross multiply
    13,565,560.15x = 18,720,643.39 × 7,370,710.76
  4. Step 4: Simplify right side
    13,565,560.15x = 137,984,447,697,170.70
  5. Step 5: Solve for x
    x = 137,984,447,697,170.70/13,565,560.15
  6. Step 6: Final answer
    x = 10,171,673.43

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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.