Home / 1,286,822,938.62-1,775,673,553.71-722,178,308.66

Finding the Fourth Proportional to 1,286,822,938.62, 1,775,673,553.71 and 722,178,308.66

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Solution

The fourth proportional to 1,286,822,938.62, 1,775,673,553.71 and 722,178,308.66 is: 996,526,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,822,938.62 : 1,775,673,553.71 = 722,178,308.66 : x
  2. Step 2: Convert to fraction form
    1,286,822,938.62/1,775,673,553.71 = 722,178,308.66/x
  3. Step 3: Cross multiply
    1,286,822,938.62x = 1,775,673,553.71 × 722,178,308.66
  4. Step 4: Simplify right side
    1,286,822,938.62x = 1,282,352,923,745,687,808
  5. Step 5: Solve for x
    x = 1,282,352,923,745,687,808/1,286,822,938.62
  6. Step 6: Final answer
    x = 996,526,317.07

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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.