Home / 653,401,505.20-981,235,998.60-347,291,489.20

Finding the Fourth Proportional to 653,401,505.20, 981,235,998.60 and 347,291,489.20

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Solution

The fourth proportional to 653,401,505.20, 981,235,998.60 and 347,291,489.20 is: 521,539,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,401,505.20 : 981,235,998.60 = 347,291,489.20 : x
  2. Step 2: Convert to fraction form
    653,401,505.20/981,235,998.60 = 347,291,489.20/x
  3. Step 3: Cross multiply
    653,401,505.20x = 981,235,998.60 × 347,291,489.20
  4. Step 4: Simplify right side
    653,401,505.20x = 340,774,911,210,443,136
  5. Step 5: Solve for x
    x = 340,774,911,210,443,136/653,401,505.20
  6. Step 6: Final answer
    x = 521,539,831.94

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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.