Home / 143,386,512,270.45-197,868,199,568.19-79,155,857,403.51

Finding the Fourth Proportional to 143,386,512,270.45, 197,868,199,568.19 and 79,155,857,403.51

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Solution

The fourth proportional to 143,386,512,270.45, 197,868,199,568.19 and 79,155,857,403.51 is: 109,232,219,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,386,512,270.45 : 197,868,199,568.19 = 79,155,857,403.51 : x
  2. Step 2: Convert to fraction form
    143,386,512,270.45/197,868,199,568.19 = 79,155,857,403.51/x
  3. Step 3: Cross multiply
    143,386,512,270.45x = 197,868,199,568.19 × 79,155,857,403.51
  4. Step 4: Simplify right side
    143,386,512,270.45x = 15,662,426,989,708,905,021,440
  5. Step 5: Solve for x
    x = 15,662,426,989,708,905,021,440/143,386,512,270.45
  6. Step 6: Final answer
    x = 109,232,219,556.10

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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.