Home / 347,909,577.20-521,416,468.20-266,728,137.20

Finding the Fourth Proportional to 347,909,577.20, 521,416,468.20 and 266,728,137.20

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Solution

The fourth proportional to 347,909,577.20, 521,416,468.20 and 266,728,137.20 is: 399,748,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,909,577.20 : 521,416,468.20 = 266,728,137.20 : x
  2. Step 2: Convert to fraction form
    347,909,577.20/521,416,468.20 = 266,728,137.20/x
  3. Step 3: Cross multiply
    347,909,577.20x = 521,416,468.20 × 266,728,137.20
  4. Step 4: Simplify right side
    347,909,577.20x = 139,076,443,268,389,024
  5. Step 5: Solve for x
    x = 139,076,443,268,389,024/347,909,577.20
  6. Step 6: Final answer
    x = 399,748,820.91

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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.