Home / 13,021,410.42-17,969,515.47-7,220,043

Finding the Fourth Proportional to 13,021,410.42, 17,969,515.47 and 7,220,043

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Solution

The fourth proportional to 13,021,410.42, 17,969,515.47 and 7,220,043 is: 9,963,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,410.42 : 17,969,515.47 = 7,220,043 : x
  2. Step 2: Convert to fraction form
    13,021,410.42/17,969,515.47 = 7,220,043/x
  3. Step 3: Cross multiply
    13,021,410.42x = 17,969,515.47 × 7,220,043
  4. Step 4: Simplify right side
    13,021,410.42x = 129,740,674,382,565.20
  5. Step 5: Solve for x
    x = 129,740,674,382,565.20/13,021,410.42
  6. Step 6: Final answer
    x = 9,963,642.20

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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.