Home / 525,840,010.40-788,760,015.60-137,662,090.40

Finding the Fourth Proportional to 525,840,010.40, 788,760,015.60 and 137,662,090.40

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Solution

The fourth proportional to 525,840,010.40, 788,760,015.60 and 137,662,090.40 is: 206,493,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,840,010.40 : 788,760,015.60 = 137,662,090.40 : x
  2. Step 2: Convert to fraction form
    525,840,010.40/788,760,015.60 = 137,662,090.40/x
  3. Step 3: Cross multiply
    525,840,010.40x = 788,760,015.60 × 137,662,090.40
  4. Step 4: Simplify right side
    525,840,010.40x = 108,582,352,571,432,624
  5. Step 5: Solve for x
    x = 108,582,352,571,432,624/525,840,010.40
  6. Step 6: Final answer
    x = 206,493,135.60

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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.