Home / 154,248,424.73-212,866,742.64-84,633,787.16

Finding the Fourth Proportional to 154,248,424.73, 212,866,742.64 and 84,633,787.16

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Solution

The fourth proportional to 154,248,424.73, 212,866,742.64 and 84,633,787.16 is: 116,796,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,248,424.73 : 212,866,742.64 = 84,633,787.16 : x
  2. Step 2: Convert to fraction form
    154,248,424.73/212,866,742.64 = 84,633,787.16/x
  3. Step 3: Cross multiply
    154,248,424.73x = 212,866,742.64 × 84,633,787.16
  4. Step 4: Simplify right side
    154,248,424.73x = 18,015,718,590,036,256
  5. Step 5: Solve for x
    x = 18,015,718,590,036,256/154,248,424.73
  6. Step 6: Final answer
    x = 116,796,775.21

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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.