Home / 1,585,746,385.40-2,378,619,578.10-550,499,317.40

Finding the Fourth Proportional to 1,585,746,385.40, 2,378,619,578.10 and 550,499,317.40

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Solution

The fourth proportional to 1,585,746,385.40, 2,378,619,578.10 and 550,499,317.40 is: 825,748,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,746,385.40 : 2,378,619,578.10 = 550,499,317.40 : x
  2. Step 2: Convert to fraction form
    1,585,746,385.40/2,378,619,578.10 = 550,499,317.40/x
  3. Step 3: Cross multiply
    1,585,746,385.40x = 2,378,619,578.10 × 550,499,317.40
  4. Step 4: Simplify right side
    1,585,746,385.40x = 1,309,428,454,098,325,760
  5. Step 5: Solve for x
    x = 1,309,428,454,098,325,760/1,585,746,385.40
  6. Step 6: Final answer
    x = 825,748,976.10

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Double scale
Find fourth proportional to 1,585,746,386.40, 2,378,619,579.60 and 550,499,318.40
Similar ratio
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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.