Home / 1,281,928,015.20-1,922,892,022.80-463,745,071.20

Finding the Fourth Proportional to 1,281,928,015.20, 1,922,892,022.80 and 463,745,071.20

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Solution

The fourth proportional to 1,281,928,015.20, 1,922,892,022.80 and 463,745,071.20 is: 695,617,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,928,015.20 : 1,922,892,022.80 = 463,745,071.20 : x
  2. Step 2: Convert to fraction form
    1,281,928,015.20/1,922,892,022.80 = 463,745,071.20/x
  3. Step 3: Cross multiply
    1,281,928,015.20x = 1,922,892,022.80 × 463,745,071.20
  4. Step 4: Simplify right side
    1,281,928,015.20x = 891,731,698,023,297,920
  5. Step 5: Solve for x
    x = 891,731,698,023,297,920/1,281,928,015.20
  6. Step 6: Final answer
    x = 695,617,606.80

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Double scale
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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.