Home / 1,012,872,173.32-1,519,279,916.46-322,820,835.40

Finding the Fourth Proportional to 1,012,872,173.32, 1,519,279,916.46 and 322,820,835.40

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Solution

The fourth proportional to 1,012,872,173.32, 1,519,279,916.46 and 322,820,835.40 is: 484,222,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,872,173.32 : 1,519,279,916.46 = 322,820,835.40 : x
  2. Step 2: Convert to fraction form
    1,012,872,173.32/1,519,279,916.46 = 322,820,835.40/x
  3. Step 3: Cross multiply
    1,012,872,173.32x = 1,519,279,916.46 × 322,820,835.40
  4. Step 4: Simplify right side
    1,012,872,173.32x = 490,455,211,838,059,392
  5. Step 5: Solve for x
    x = 490,455,211,838,059,392/1,012,872,173.32
  6. Step 6: Final answer
    x = 484,222,219.50

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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.