Home / 19,191,772.71-28,792,708.30-6,896,978.12

Finding the Fourth Proportional to 19,191,772.71, 28,792,708.30 and 6,896,978.12

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Solution

The fourth proportional to 19,191,772.71, 28,792,708.30 and 6,896,978.12 is: 10,347,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191,772.71 : 28,792,708.30 = 6,896,978.12 : x
  2. Step 2: Convert to fraction form
    19,191,772.71/28,792,708.30 = 6,896,978.12/x
  3. Step 3: Cross multiply
    19,191,772.71x = 28,792,708.30 × 6,896,978.12
  4. Step 4: Simplify right side
    19,191,772.71x = 198,582,679,160,642.41
  5. Step 5: Solve for x
    x = 198,582,679,160,642.41/19,191,772.71
  6. Step 6: Final answer
    x = 10,347,281.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.