Home / 77,974,865.60-116,962,298.40-20,472,949.40

Finding the Fourth Proportional to 77,974,865.60, 116,962,298.40 and 20,472,949.40

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Solution

The fourth proportional to 77,974,865.60, 116,962,298.40 and 20,472,949.40 is: 30,709,424.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,974,865.60 : 116,962,298.40 = 20,472,949.40 : x
  2. Step 2: Convert to fraction form
    77,974,865.60/116,962,298.40 = 20,472,949.40/x
  3. Step 3: Cross multiply
    77,974,865.60x = 116,962,298.40 × 20,472,949.40
  4. Step 4: Simplify right side
    77,974,865.60x = 2,394,563,216,850,901
  5. Step 5: Solve for x
    x = 2,394,563,216,850,901/77,974,865.60
  6. Step 6: Final answer
    x = 30,709,424.10

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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.