Home / 13,259,948.80-19,889,923.20-12,693,078.40

Finding the Fourth Proportional to 13,259,948.80, 19,889,923.20 and 12,693,078.40

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Solution

The fourth proportional to 13,259,948.80, 19,889,923.20 and 12,693,078.40 is: 19,039,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259,948.80 : 19,889,923.20 = 12,693,078.40 : x
  2. Step 2: Convert to fraction form
    13,259,948.80/19,889,923.20 = 12,693,078.40/x
  3. Step 3: Cross multiply
    13,259,948.80x = 19,889,923.20 × 12,693,078.40
  4. Step 4: Simplify right side
    13,259,948.80x = 252,464,354,547,578.88
  5. Step 5: Solve for x
    x = 252,464,354,547,578.88/13,259,948.80
  6. Step 6: Final answer
    x = 19,039,617.60

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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.