Home / 13,645,403.42-18,830,513.70-7,450,430.81

Finding the Fourth Proportional to 13,645,403.42, 18,830,513.70 and 7,450,430.81

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Solution

The fourth proportional to 13,645,403.42, 18,830,513.70 and 7,450,430.81 is: 10,281,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645,403.42 : 18,830,513.70 = 7,450,430.81 : x
  2. Step 2: Convert to fraction form
    13,645,403.42/18,830,513.70 = 7,450,430.81/x
  3. Step 3: Cross multiply
    13,645,403.42x = 18,830,513.70 × 7,450,430.81
  4. Step 4: Simplify right side
    13,645,403.42x = 140,295,439,344,454.52
  5. Step 5: Solve for x
    x = 140,295,439,344,454.52/13,645,403.42
  6. Step 6: Final answer
    x = 10,281,516.43

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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.