Home / 643,596,103.20-965,898,039.60-298,592,479.20

Finding the Fourth Proportional to 643,596,103.20, 965,898,039.60 and 298,592,479.20

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Solution

The fourth proportional to 643,596,103.20, 965,898,039.60 and 298,592,479.20 is: 448,122,493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,596,103.20 : 965,898,039.60 = 298,592,479.20 : x
  2. Step 2: Convert to fraction form
    643,596,103.20/965,898,039.60 = 298,592,479.20/x
  3. Step 3: Cross multiply
    643,596,103.20x = 965,898,039.60 × 298,592,479.20
  4. Step 4: Simplify right side
    643,596,103.20x = 288,409,890,298,583,744
  5. Step 5: Solve for x
    x = 288,409,890,298,583,744/643,596,103.20
  6. Step 6: Final answer
    x = 448,122,493.07

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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.