Home / 72,348,099.47-99,841,285.31-39,308,900.36

Finding the Fourth Proportional to 72,348,099.47, 99,841,285.31 and 39,308,900.36

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Solution

The fourth proportional to 72,348,099.47, 99,841,285.31 and 39,308,900.36 is: 54,246,775.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,348,099.47 : 99,841,285.31 = 39,308,900.36 : x
  2. Step 2: Convert to fraction form
    72,348,099.47/99,841,285.31 = 39,308,900.36/x
  3. Step 3: Cross multiply
    72,348,099.47x = 99,841,285.31 × 39,308,900.36
  4. Step 4: Simplify right side
    72,348,099.47x = 3,924,651,135,590,483
  5. Step 5: Solve for x
    x = 3,924,651,135,590,483/72,348,099.47
  6. Step 6: Final answer
    x = 54,246,775.86

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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.