Home / 513,863,301.96-709,112,351.37-278,908,963.92

Finding the Fourth Proportional to 513,863,301.96, 709,112,351.37 and 278,908,963.92

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Solution

The fourth proportional to 513,863,301.96, 709,112,351.37 and 278,908,963.92 is: 384,884,054.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,863,301.96 : 709,112,351.37 = 278,908,963.92 : x
  2. Step 2: Convert to fraction form
    513,863,301.96/709,112,351.37 = 278,908,963.92/x
  3. Step 3: Cross multiply
    513,863,301.96x = 709,112,351.37 × 278,908,963.92
  4. Step 4: Simplify right side
    513,863,301.96x = 197,777,791,223,481,696
  5. Step 5: Solve for x
    x = 197,777,791,223,481,696/513,863,301.96
  6. Step 6: Final answer
    x = 384,884,054.71

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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.