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Finding the Fourth Proportional to 629,857,364.40, 944,786,046.60 and 319,920,973.20

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Solution

The fourth proportional to 629,857,364.40, 944,786,046.60 and 319,920,973.20 is: 479,881,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,364.40 : 944,786,046.60 = 319,920,973.20 : x
  2. Step 2: Convert to fraction form
    629,857,364.40/944,786,046.60 = 319,920,973.20/x
  3. Step 3: Cross multiply
    629,857,364.40x = 944,786,046.60 × 319,920,973.20
  4. Step 4: Simplify right side
    629,857,364.40x = 302,256,871,494,052,544
  5. Step 5: Solve for x
    x = 302,256,871,494,052,544/629,857,364.40
  6. Step 6: Final answer
    x = 479,881,459.80

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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.