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Finding the Fourth Proportional to 570,018,610.80, 854,020,146.60 and 505,521,356.40

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Solution

The fourth proportional to 570,018,610.80, 854,020,146.60 and 505,521,356.40 is: 757,388,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,018,610.80 : 854,020,146.60 = 505,521,356.40 : x
  2. Step 2: Convert to fraction form
    570,018,610.80/854,020,146.60 = 505,521,356.40/x
  3. Step 3: Cross multiply
    570,018,610.80x = 854,020,146.60 × 505,521,356.40
  4. Step 4: Simplify right side
    570,018,610.80x = 431,725,422,902,158,848
  5. Step 5: Solve for x
    x = 431,725,422,902,158,848/570,018,610.80
  6. Step 6: Final answer
    x = 757,388,293.51

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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.