Home / 629,856,749.10-944,785,123.65-400,085,280.30

Finding the Fourth Proportional to 629,856,749.10, 944,785,123.65 and 400,085,280.30

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Solution

The fourth proportional to 629,856,749.10, 944,785,123.65 and 400,085,280.30 is: 600,127,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,749.10 : 944,785,123.65 = 400,085,280.30 : x
  2. Step 2: Convert to fraction form
    629,856,749.10/944,785,123.65 = 400,085,280.30/x
  3. Step 3: Cross multiply
    629,856,749.10x = 944,785,123.65 × 400,085,280.30
  4. Step 4: Simplify right side
    629,856,749.10x = 377,994,621,018,780,416
  5. Step 5: Solve for x
    x = 377,994,621,018,780,416/629,856,749.10
  6. Step 6: Final answer
    x = 600,127,920.45

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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.