Home / 752,329,512.78-1,038,186,284.63-417,823,582.86

Finding the Fourth Proportional to 752,329,512.78, 1,038,186,284.63 and 417,823,582.86

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Solution

The fourth proportional to 752,329,512.78, 1,038,186,284.63 and 417,823,582.86 is: 576,580,747.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,329,512.78 : 1,038,186,284.63 = 417,823,582.86 : x
  2. Step 2: Convert to fraction form
    752,329,512.78/1,038,186,284.63 = 417,823,582.86/x
  3. Step 3: Cross multiply
    752,329,512.78x = 1,038,186,284.63 × 417,823,582.86
  4. Step 4: Simplify right side
    752,329,512.78x = 433,778,713,118,129,216
  5. Step 5: Solve for x
    x = 433,778,713,118,129,216/752,329,512.78
  6. Step 6: Final answer
    x = 576,580,747.87

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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.