Home / 2,815,660,551.74-3,885,615,409.19-1,528,172,439.43

Finding the Fourth Proportional to 2,815,660,551.74, 3,885,615,409.19 and 1,528,172,439.43

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Solution

The fourth proportional to 2,815,660,551.74, 3,885,615,409.19 and 1,528,172,439.43 is: 2,108,880,054.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,660,551.74 : 3,885,615,409.19 = 1,528,172,439.43 : x
  2. Step 2: Convert to fraction form
    2,815,660,551.74/3,885,615,409.19 = 1,528,172,439.43/x
  3. Step 3: Cross multiply
    2,815,660,551.74x = 3,885,615,409.19 × 1,528,172,439.43
  4. Step 4: Simplify right side
    2,815,660,551.74x = 5,937,890,378,538,966,016
  5. Step 5: Solve for x
    x = 5,937,890,378,538,966,016/2,815,660,551.74
  6. Step 6: Final answer
    x = 2,108,880,054.76

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Double scale
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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.