Home / 717,413,374.20-1,075,442,966.10-389,405,364.60

Finding the Fourth Proportional to 717,413,374.20, 1,075,442,966.10 and 389,405,364.60

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Solution

The fourth proportional to 717,413,374.20, 1,075,442,966.10 and 389,405,364.60 is: 583,740,525.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,413,374.20 : 1,075,442,966.10 = 389,405,364.60 : x
  2. Step 2: Convert to fraction form
    717,413,374.20/1,075,442,966.10 = 389,405,364.60/x
  3. Step 3: Cross multiply
    717,413,374.20x = 1,075,442,966.10 × 389,405,364.60
  4. Step 4: Simplify right side
    717,413,374.20x = 418,783,260,320,675,904
  5. Step 5: Solve for x
    x = 418,783,260,320,675,904/717,413,374.20
  6. Step 6: Final answer
    x = 583,740,525.87

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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.