Home / 664,440,050.60-996,660,075.90-319,310,455.40

Finding the Fourth Proportional to 664,440,050.60, 996,660,075.90 and 319,310,455.40

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Solution

The fourth proportional to 664,440,050.60, 996,660,075.90 and 319,310,455.40 is: 478,965,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,440,050.60 : 996,660,075.90 = 319,310,455.40 : x
  2. Step 2: Convert to fraction form
    664,440,050.60/996,660,075.90 = 319,310,455.40/x
  3. Step 3: Cross multiply
    664,440,050.60x = 996,660,075.90 × 319,310,455.40
  4. Step 4: Simplify right side
    664,440,050.60x = 318,243,982,714,627,520
  5. Step 5: Solve for x
    x = 318,243,982,714,627,520/664,440,050.60
  6. Step 6: Final answer
    x = 478,965,683.10

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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.