Home / 3,938,386,018.09-5,434,908,755.34-2,154,223,864.84

Finding the Fourth Proportional to 3,938,386,018.09, 5,434,908,755.34 and 2,154,223,864.84

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Solution

The fourth proportional to 3,938,386,018.09, 5,434,908,755.34 and 2,154,223,864.84 is: 2,972,793,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,386,018.09 : 5,434,908,755.34 = 2,154,223,864.84 : x
  2. Step 2: Convert to fraction form
    3,938,386,018.09/5,434,908,755.34 = 2,154,223,864.84/x
  3. Step 3: Cross multiply
    3,938,386,018.09x = 5,434,908,755.34 × 2,154,223,864.84
  4. Step 4: Simplify right side
    3,938,386,018.09x = 11,708,010,143,981,289,472
  5. Step 5: Solve for x
    x = 11,708,010,143,981,289,472/3,938,386,018.09
  6. Step 6: Final answer
    x = 2,972,793,954.22

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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.