Home / 15,770,878.52-21,764,095.80-9,249,211.74

Finding the Fourth Proportional to 15,770,878.52, 21,764,095.80 and 9,249,211.74

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Solution

The fourth proportional to 15,770,878.52, 21,764,095.80 and 9,249,211.74 is: 12,764,078.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,770,878.52 : 21,764,095.80 = 9,249,211.74 : x
  2. Step 2: Convert to fraction form
    15,770,878.52/21,764,095.80 = 9,249,211.74/x
  3. Step 3: Cross multiply
    15,770,878.52x = 21,764,095.80 × 9,249,211.74
  4. Step 4: Simplify right side
    15,770,878.52x = 201,300,730,383,844.72
  5. Step 5: Solve for x
    x = 201,300,730,383,844.72/15,770,878.52
  6. Step 6: Final answer
    x = 12,764,078.43

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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.