Home / 2,171,928,213.66-3,258,894,271.47-991,870,448.22

Finding the Fourth Proportional to 2,171,928,213.66, 3,258,894,271.47 and 991,870,448.22

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Solution

The fourth proportional to 2,171,928,213.66, 3,258,894,271.47 and 991,870,448.22 is: 1,488,263,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,928,213.66 : 3,258,894,271.47 = 991,870,448.22 : x
  2. Step 2: Convert to fraction form
    2,171,928,213.66/3,258,894,271.47 = 991,870,448.22/x
  3. Step 3: Cross multiply
    2,171,928,213.66x = 3,258,894,271.47 × 991,870,448.22
  4. Step 4: Simplify right side
    2,171,928,213.66x = 3,232,400,921,744,539,136
  5. Step 5: Solve for x
    x = 3,232,400,921,744,539,136/2,171,928,213.66
  6. Step 6: Final answer
    x = 1,488,263,240.66

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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.