Home / 1,818,936,429.60-2,728,404,644.40-992,439,386.40

Finding the Fourth Proportional to 1,818,936,429.60, 2,728,404,644.40 and 992,439,386.40

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Solution

The fourth proportional to 1,818,936,429.60, 2,728,404,644.40 and 992,439,386.40 is: 1,488,659,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,936,429.60 : 2,728,404,644.40 = 992,439,386.40 : x
  2. Step 2: Convert to fraction form
    1,818,936,429.60/2,728,404,644.40 = 992,439,386.40/x
  3. Step 3: Cross multiply
    1,818,936,429.60x = 2,728,404,644.40 × 992,439,386.40
  4. Step 4: Simplify right side
    1,818,936,429.60x = 2,707,776,231,139,246,080
  5. Step 5: Solve for x
    x = 2,707,776,231,139,246,080/1,818,936,429.60
  6. Step 6: Final answer
    x = 1,488,659,079.60

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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.