Home / 148,810,715.78-205,359,585.65-81,833,991.93

Finding the Fourth Proportional to 148,810,715.78, 205,359,585.65 and 81,833,991.93

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Solution

The fourth proportional to 148,810,715.78, 205,359,585.65 and 81,833,991.93 is: 112,931,347.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,810,715.78 : 205,359,585.65 = 81,833,991.93 : x
  2. Step 2: Convert to fraction form
    148,810,715.78/205,359,585.65 = 81,833,991.93/x
  3. Step 3: Cross multiply
    148,810,715.78x = 205,359,585.65 × 81,833,991.93
  4. Step 4: Simplify right side
    148,810,715.78x = 16,805,394,675,565,928
  5. Step 5: Solve for x
    x = 16,805,394,675,565,928/148,810,715.78
  6. Step 6: Final answer
    x = 112,931,347.63

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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.