Home / 821,670,304.59-1,133,243,854.07-722,338,667.28

Finding the Fourth Proportional to 821,670,304.59, 1,133,243,854.07 and 722,338,667.28

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Solution

The fourth proportional to 821,670,304.59, 1,133,243,854.07 and 722,338,667.28 is: 996,246,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,670,304.59 : 1,133,243,854.07 = 722,338,667.28 : x
  2. Step 2: Convert to fraction form
    821,670,304.59/1,133,243,854.07 = 722,338,667.28/x
  3. Step 3: Cross multiply
    821,670,304.59x = 1,133,243,854.07 × 722,338,667.28
  4. Step 4: Simplify right side
    821,670,304.59x = 818,585,855,248,562,944
  5. Step 5: Solve for x
    x = 818,585,855,248,562,944/821,670,304.59
  6. Step 6: Final answer
    x = 996,246,122.90

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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.