Home / 19,879,040.40-29,818,560.60-9,108,502.80

Finding the Fourth Proportional to 19,879,040.40, 29,818,560.60 and 9,108,502.80

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Solution

The fourth proportional to 19,879,040.40, 29,818,560.60 and 9,108,502.80 is: 13,662,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879,040.40 : 29,818,560.60 = 9,108,502.80 : x
  2. Step 2: Convert to fraction form
    19,879,040.40/29,818,560.60 = 9,108,502.80/x
  3. Step 3: Cross multiply
    19,879,040.40x = 29,818,560.60 × 9,108,502.80
  4. Step 4: Simplify right side
    19,879,040.40x = 271,602,442,717,069.72
  5. Step 5: Solve for x
    x = 271,602,442,717,069.72/19,879,040.40
  6. Step 6: Final answer
    x = 13,662,754.20

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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.