Home / 487,183,205.80-730,774,808.70-142,171,708.60

Finding the Fourth Proportional to 487,183,205.80, 730,774,808.70 and 142,171,708.60

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Solution

The fourth proportional to 487,183,205.80, 730,774,808.70 and 142,171,708.60 is: 213,257,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,183,205.80 : 730,774,808.70 = 142,171,708.60 : x
  2. Step 2: Convert to fraction form
    487,183,205.80/730,774,808.70 = 142,171,708.60/x
  3. Step 3: Cross multiply
    487,183,205.80x = 730,774,808.70 × 142,171,708.60
  4. Step 4: Simplify right side
    487,183,205.80x = 103,895,503,154,717,152
  5. Step 5: Solve for x
    x = 103,895,503,154,717,152/487,183,205.80
  6. Step 6: Final answer
    x = 213,257,562.90

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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.