Home / 377,426,008.96-520,864,651.20-212,424,265.60

Finding the Fourth Proportional to 377,426,008.96, 520,864,651.20 and 212,424,265.60

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Solution

The fourth proportional to 377,426,008.96, 520,864,651.20 and 212,424,265.60 is: 293,154,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,426,008.96 : 520,864,651.20 = 212,424,265.60 : x
  2. Step 2: Convert to fraction form
    377,426,008.96/520,864,651.20 = 212,424,265.60/x
  3. Step 3: Cross multiply
    377,426,008.96x = 520,864,651.20 × 212,424,265.60
  4. Step 4: Simplify right side
    377,426,008.96x = 110,644,291,008,160,160
  5. Step 5: Solve for x
    x = 110,644,291,008,160,160/377,426,008.96
  6. Step 6: Final answer
    x = 293,154,918.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.