Home / 13,712,430.21-18,922,743.57-7,517,265.22

Finding the Fourth Proportional to 13,712,430.21, 18,922,743.57 and 7,517,265.22

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Solution

The fourth proportional to 13,712,430.21, 18,922,743.57 and 7,517,265.22 is: 10,373,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712,430.21 : 18,922,743.57 = 7,517,265.22 : x
  2. Step 2: Convert to fraction form
    13,712,430.21/18,922,743.57 = 7,517,265.22/x
  3. Step 3: Cross multiply
    13,712,430.21x = 18,922,743.57 × 7,517,265.22
  4. Step 4: Simplify right side
    13,712,430.21x = 142,247,282,105,739.62
  5. Step 5: Solve for x
    x = 142,247,282,105,739.62/13,712,430.21
  6. Step 6: Final answer
    x = 10,373,601.17

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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.