Home / 1,858,178,458.76-2,787,192,096.84-459,127,497.78

Finding the Fourth Proportional to 1,858,178,458.76, 2,787,192,096.84 and 459,127,497.78

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Solution

The fourth proportional to 1,858,178,458.76, 2,787,192,096.84 and 459,127,497.78 is: 688,672,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,178,458.76 : 2,787,192,096.84 = 459,127,497.78 : x
  2. Step 2: Convert to fraction form
    1,858,178,458.76/2,787,192,096.84 = 459,127,497.78/x
  3. Step 3: Cross multiply
    1,858,178,458.76x = 2,787,192,096.84 × 459,127,497.78
  4. Step 4: Simplify right side
    1,858,178,458.76x = 1,279,676,533,254,340,608
  5. Step 5: Solve for x
    x = 1,279,676,533,254,340,608/1,858,178,458.76
  6. Step 6: Final answer
    x = 688,672,569.22

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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.