Home / 252,287,999.20-378,431,998.80-70,534,885.60

Finding the Fourth Proportional to 252,287,999.20, 378,431,998.80 and 70,534,885.60

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Solution

The fourth proportional to 252,287,999.20, 378,431,998.80 and 70,534,885.60 is: 105,802,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,287,999.20 : 378,431,998.80 = 70,534,885.60 : x
  2. Step 2: Convert to fraction form
    252,287,999.20/378,431,998.80 = 70,534,885.60/x
  3. Step 3: Cross multiply
    252,287,999.20x = 378,431,998.80 × 70,534,885.60
  4. Step 4: Simplify right side
    252,287,999.20x = 26,692,657,742,737,336
  5. Step 5: Solve for x
    x = 26,692,657,742,737,336/252,287,999.20
  6. Step 6: Final answer
    x = 105,802,328.40

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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.