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Finding the Fourth Proportional to 183,985,409.60, 275,978,114.40 and 138,068,907.20

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Solution

The fourth proportional to 183,985,409.60, 275,978,114.40 and 138,068,907.20 is: 207,103,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,985,409.60 : 275,978,114.40 = 138,068,907.20 : x
  2. Step 2: Convert to fraction form
    183,985,409.60/275,978,114.40 = 138,068,907.20/x
  3. Step 3: Cross multiply
    183,985,409.60x = 275,978,114.40 × 138,068,907.20
  4. Step 4: Simplify right side
    183,985,409.60x = 38,103,996,666,324,576
  5. Step 5: Solve for x
    x = 38,103,996,666,324,576/183,985,409.60
  6. Step 6: Final answer
    x = 207,103,360.80

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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.