Home / 347,909,455.20-521,416,285.20-266,728,015.20

Finding the Fourth Proportional to 347,909,455.20, 521,416,285.20 and 266,728,015.20

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Solution

The fourth proportional to 347,909,455.20, 521,416,285.20 and 266,728,015.20 is: 399,748,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,909,455.20 : 521,416,285.20 = 266,728,015.20 : x
  2. Step 2: Convert to fraction form
    347,909,455.20/521,416,285.20 = 266,728,015.20/x
  3. Step 3: Cross multiply
    347,909,455.20x = 521,416,285.20 × 266,728,015.20
  4. Step 4: Simplify right side
    347,909,455.20x = 139,076,330,844,353,120
  5. Step 5: Solve for x
    x = 139,076,330,844,353,120/347,909,455.20
  6. Step 6: Final answer
    x = 399,748,637.94

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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.