Home / 2,788,086.40-4,182,129.60-1,668,342.40

Finding the Fourth Proportional to 2,788,086.40, 4,182,129.60 and 1,668,342.40

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Solution

The fourth proportional to 2,788,086.40, 4,182,129.60 and 1,668,342.40 is: 2,502,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,086.40 : 4,182,129.60 = 1,668,342.40 : x
  2. Step 2: Convert to fraction form
    2,788,086.40/4,182,129.60 = 1,668,342.40/x
  3. Step 3: Cross multiply
    2,788,086.40x = 4,182,129.60 × 1,668,342.40
  4. Step 4: Simplify right side
    2,788,086.40x = 6,977,224,133,975.04
  5. Step 5: Solve for x
    x = 6,977,224,133,975.04/2,788,086.40
  6. Step 6: Final answer
    x = 2,502,513.60

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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.