Home / 828,576,938.60-1,242,865,407.90-344,847,530.60

Finding the Fourth Proportional to 828,576,938.60, 1,242,865,407.90 and 344,847,530.60

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Solution

The fourth proportional to 828,576,938.60, 1,242,865,407.90 and 344,847,530.60 is: 517,271,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,576,938.60 : 1,242,865,407.90 = 344,847,530.60 : x
  2. Step 2: Convert to fraction form
    828,576,938.60/1,242,865,407.90 = 344,847,530.60/x
  3. Step 3: Cross multiply
    828,576,938.60x = 1,242,865,407.90 × 344,847,530.60
  4. Step 4: Simplify right side
    828,576,938.60x = 428,599,066,782,476,800
  5. Step 5: Solve for x
    x = 428,599,066,782,476,800/828,576,938.60
  6. Step 6: Final answer
    x = 517,271,295.90

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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.