Home / 2,087,943.40-3,131,915.10-1,808,007.40

Finding the Fourth Proportional to 2,087,943.40, 3,131,915.10 and 1,808,007.40

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Solution

The fourth proportional to 2,087,943.40, 3,131,915.10 and 1,808,007.40 is: 2,712,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,943.40 : 3,131,915.10 = 1,808,007.40 : x
  2. Step 2: Convert to fraction form
    2,087,943.40/3,131,915.10 = 1,808,007.40/x
  3. Step 3: Cross multiply
    2,087,943.40x = 3,131,915.10 × 1,808,007.40
  4. Step 4: Simplify right side
    2,087,943.40x = 5,662,525,676,971.74
  5. Step 5: Solve for x
    x = 5,662,525,676,971.74/2,087,943.40
  6. Step 6: Final answer
    x = 2,712,011.10

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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.