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Finding the Fourth Proportional to 668,662,396.80, 1,001,009,548.80 and 496,900,665.60

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Solution

The fourth proportional to 668,662,396.80, 1,001,009,548.80 and 496,900,665.60 is: 743,876,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,662,396.80 : 1,001,009,548.80 = 496,900,665.60 : x
  2. Step 2: Convert to fraction form
    668,662,396.80/1,001,009,548.80 = 496,900,665.60/x
  3. Step 3: Cross multiply
    668,662,396.80x = 1,001,009,548.80 × 496,900,665.60
  4. Step 4: Simplify right side
    668,662,396.80x = 497,402,311,070,675,712
  5. Step 5: Solve for x
    x = 497,402,311,070,675,712/668,662,396.80
  6. Step 6: Final answer
    x = 743,876,601.18

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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.