Home / 1,277,665,082.20-1,916,497,623.30-459,482,138.20

Finding the Fourth Proportional to 1,277,665,082.20, 1,916,497,623.30 and 459,482,138.20

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Solution

The fourth proportional to 1,277,665,082.20, 1,916,497,623.30 and 459,482,138.20 is: 689,223,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,665,082.20 : 1,916,497,623.30 = 459,482,138.20 : x
  2. Step 2: Convert to fraction form
    1,277,665,082.20/1,916,497,623.30 = 459,482,138.20/x
  3. Step 3: Cross multiply
    1,277,665,082.20x = 1,916,497,623.30 × 459,482,138.20
  4. Step 4: Simplify right side
    1,277,665,082.20x = 880,596,425,809,102,080
  5. Step 5: Solve for x
    x = 880,596,425,809,102,080/1,277,665,082.20
  6. Step 6: Final answer
    x = 689,223,207.30

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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.