Home / 192,398,898.78-288,697,569.93-90,173,321.82

Finding the Fourth Proportional to 192,398,898.78, 288,697,569.93 and 90,173,321.82

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Solution

The fourth proportional to 192,398,898.78, 288,697,569.93 and 90,173,321.82 is: 135,306,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,398,898.78 : 288,697,569.93 = 90,173,321.82 : x
  2. Step 2: Convert to fraction form
    192,398,898.78/288,697,569.93 = 90,173,321.82/x
  3. Step 3: Cross multiply
    192,398,898.78x = 288,697,569.93 × 90,173,321.82
  4. Step 4: Simplify right side
    192,398,898.78x = 26,032,818,881,949,844
  5. Step 5: Solve for x
    x = 26,032,818,881,949,844/192,398,898.78
  6. Step 6: Final answer
    x = 135,306,485.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.