Home / 443,243,407.20-664,865,110.80-136,629,506.40

Finding the Fourth Proportional to 443,243,407.20, 664,865,110.80 and 136,629,506.40

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Solution

The fourth proportional to 443,243,407.20, 664,865,110.80 and 136,629,506.40 is: 204,944,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,243,407.20 : 664,865,110.80 = 136,629,506.40 : x
  2. Step 2: Convert to fraction form
    443,243,407.20/664,865,110.80 = 136,629,506.40/x
  3. Step 3: Cross multiply
    443,243,407.20x = 664,865,110.80 × 136,629,506.40
  4. Step 4: Simplify right side
    443,243,407.20x = 90,840,191,911,185,312
  5. Step 5: Solve for x
    x = 90,840,191,911,185,312/443,243,407.20
  6. Step 6: Final answer
    x = 204,944,259.60

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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.