Home / 569,969,102.72-786,551,350-319,075,555.12

Finding the Fourth Proportional to 569,969,102.72, 786,551,350 and 319,075,555.12

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Solution

The fourth proportional to 569,969,102.72, 786,551,350 and 319,075,555.12 is: 440,320,900.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,969,102.72 : 786,551,350 = 319,075,555.12 : x
  2. Step 2: Convert to fraction form
    569,969,102.72/786,551,350 = 319,075,555.12/x
  3. Step 3: Cross multiply
    569,969,102.72x = 786,551,350 × 319,075,555.12
  4. Step 4: Simplify right side
    569,969,102.72x = 250,969,308,631,635,424
  5. Step 5: Solve for x
    x = 250,969,308,631,635,424/569,969,102.72
  6. Step 6: Final answer
    x = 440,320,900.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.