Home / 320,378,935.40-480,456,428.70-166,974,007.40

Finding the Fourth Proportional to 320,378,935.40, 480,456,428.70 and 166,974,007.40

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Solution

The fourth proportional to 320,378,935.40, 480,456,428.70 and 166,974,007.40 is: 250,402,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,378,935.40 : 480,456,428.70 = 166,974,007.40 : x
  2. Step 2: Convert to fraction form
    320,378,935.40/480,456,428.70 = 166,974,007.40/x
  3. Step 3: Cross multiply
    320,378,935.40x = 480,456,428.70 × 166,974,007.40
  4. Step 4: Simplify right side
    320,378,935.40x = 80,223,735,281,131,376
  5. Step 5: Solve for x
    x = 80,223,735,281,131,376/320,378,935.40
  6. Step 6: Final answer
    x = 250,402,652.66

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1.5x scale

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.