Home / 497,664,518.40-746,496,777.60-428,389,689.60

Finding the Fourth Proportional to 497,664,518.40, 746,496,777.60 and 428,389,689.60

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Solution

The fourth proportional to 497,664,518.40, 746,496,777.60 and 428,389,689.60 is: 642,584,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,664,518.40 : 746,496,777.60 = 428,389,689.60 : x
  2. Step 2: Convert to fraction form
    497,664,518.40/746,496,777.60 = 428,389,689.60/x
  3. Step 3: Cross multiply
    497,664,518.40x = 746,496,777.60 × 428,389,689.60
  4. Step 4: Simplify right side
    497,664,518.40x = 319,791,522,843,464,256
  5. Step 5: Solve for x
    x = 319,791,522,843,464,256/497,664,518.40
  6. Step 6: Final answer
    x = 642,584,534.40

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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.