Home / 140,927,391.18-194,479,401.69-78,212,957.40

Finding the Fourth Proportional to 140,927,391.18, 194,479,401.69 and 78,212,957.40

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Solution

The fourth proportional to 140,927,391.18, 194,479,401.69 and 78,212,957.40 is: 107,933,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,927,391.18 : 194,479,401.69 = 78,212,957.40 : x
  2. Step 2: Convert to fraction form
    140,927,391.18/194,479,401.69 = 78,212,957.40/x
  3. Step 3: Cross multiply
    140,927,391.18x = 194,479,401.69 × 78,212,957.40
  4. Step 4: Simplify right side
    140,927,391.18x = 15,210,809,159,557,458
  5. Step 5: Solve for x
    x = 15,210,809,159,557,458/140,927,391.18
  6. Step 6: Final answer
    x = 107,933,660.25

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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.