Home / 778,017,762.97-1,073,690,121.65-425,585,688.50

Finding the Fourth Proportional to 778,017,762.97, 1,073,690,121.65 and 425,585,688.50

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Solution

The fourth proportional to 778,017,762.97, 1,073,690,121.65 and 425,585,688.50 is: 587,322,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,017,762.97 : 1,073,690,121.65 = 425,585,688.50 : x
  2. Step 2: Convert to fraction form
    778,017,762.97/1,073,690,121.65 = 425,585,688.50/x
  3. Step 3: Cross multiply
    778,017,762.97x = 1,073,690,121.65 × 425,585,688.50
  4. Step 4: Simplify right side
    778,017,762.97x = 456,947,149,661,003,584
  5. Step 5: Solve for x
    x = 456,947,149,661,003,584/778,017,762.97
  6. Step 6: Final answer
    x = 587,322,258.45

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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.