Home / 20,282,332.16-27,989,715.85-10,989,899.78

Finding the Fourth Proportional to 20,282,332.16, 27,989,715.85 and 10,989,899.78

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Solution

The fourth proportional to 20,282,332.16, 27,989,715.85 and 10,989,899.78 is: 15,166,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282,332.16 : 27,989,715.85 = 10,989,899.78 : x
  2. Step 2: Convert to fraction form
    20,282,332.16/27,989,715.85 = 10,989,899.78/x
  3. Step 3: Cross multiply
    20,282,332.16x = 27,989,715.85 × 10,989,899.78
  4. Step 4: Simplify right side
    20,282,332.16x = 307,604,171,894,754.19
  5. Step 5: Solve for x
    x = 307,604,171,894,754.19/20,282,332.16
  6. Step 6: Final answer
    x = 15,166,114.50

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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.