Home / 1,986,225,459.57-2,979,446,839.56-805,630,606.70

Finding the Fourth Proportional to 1,986,225,459.57, 2,979,446,839.56 and 805,630,606.70

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Solution

The fourth proportional to 1,986,225,459.57, 2,979,446,839.56 and 805,630,606.70 is: 1,208,489,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,225,459.57 : 2,979,446,839.56 = 805,630,606.70 : x
  2. Step 2: Convert to fraction form
    1,986,225,459.57/2,979,446,839.56 = 805,630,606.70/x
  3. Step 3: Cross multiply
    1,986,225,459.57x = 2,979,446,839.56 × 805,630,606.70
  4. Step 4: Simplify right side
    1,986,225,459.57x = 2,400,333,564,970,223,104
  5. Step 5: Solve for x
    x = 2,400,333,564,970,223,104/1,986,225,459.57
  6. Step 6: Final answer
    x = 1,208,489,979.53

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1.5x scale

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.