Home / 13,571,380.32-18,728,417.02-7,771,283.06

Finding the Fourth Proportional to 13,571,380.32, 18,728,417.02 and 7,771,283.06

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Solution

The fourth proportional to 13,571,380.32, 18,728,417.02 and 7,771,283.06 is: 10,724,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571,380.32 : 18,728,417.02 = 7,771,283.06 : x
  2. Step 2: Convert to fraction form
    13,571,380.32/18,728,417.02 = 7,771,283.06/x
  3. Step 3: Cross multiply
    13,571,380.32x = 18,728,417.02 × 7,771,283.06
  4. Step 4: Simplify right side
    13,571,380.32x = 145,543,829,928,141.66
  5. Step 5: Solve for x
    x = 145,543,829,928,141.66/13,571,380.32
  6. Step 6: Final answer
    x = 10,724,320.33

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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.