Home / 907,918,985.80-1,359,008,697.30-649,638,659.80

Finding the Fourth Proportional to 907,918,985.80, 1,359,008,697.30 and 649,638,659.80

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Solution

The fourth proportional to 907,918,985.80, 1,359,008,697.30 and 649,638,659.80 is: 972,404,589.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,918,985.80 : 1,359,008,697.30 = 649,638,659.80 : x
  2. Step 2: Convert to fraction form
    907,918,985.80/1,359,008,697.30 = 649,638,659.80/x
  3. Step 3: Cross multiply
    907,918,985.80x = 1,359,008,697.30 × 649,638,659.80
  4. Step 4: Simplify right side
    907,918,985.80x = 882,864,588,770,515,840
  5. Step 5: Solve for x
    x = 882,864,588,770,515,840/907,918,985.80
  6. Step 6: Final answer
    x = 972,404,589.59

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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.