Home / 3,940,742,455.89-5,438,221,039.81-2,224,452,949.56

Finding the Fourth Proportional to 3,940,742,455.89, 5,438,221,039.81 and 2,224,452,949.56

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Solution

The fourth proportional to 3,940,742,455.89, 5,438,221,039.81 and 2,224,452,949.56 is: 3,069,743,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,742,455.89 : 5,438,221,039.81 = 2,224,452,949.56 : x
  2. Step 2: Convert to fraction form
    3,940,742,455.89/5,438,221,039.81 = 2,224,452,949.56/x
  3. Step 3: Cross multiply
    3,940,742,455.89x = 5,438,221,039.81 × 2,224,452,949.56
  4. Step 4: Simplify right side
    3,940,742,455.89x = 12,097,066,832,364,605,440
  5. Step 5: Solve for x
    x = 12,097,066,832,364,605,440/3,940,742,455.89
  6. Step 6: Final answer
    x = 3,069,743,066.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.