Home / 907,918,998.30-1,359,008,716.05-649,638,672.30

Finding the Fourth Proportional to 907,918,998.30, 1,359,008,716.05 and 649,638,672.30

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Solution

The fourth proportional to 907,918,998.30, 1,359,008,716.05 and 649,638,672.30 is: 972,404,608.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,918,998.30 : 1,359,008,716.05 = 649,638,672.30 : x
  2. Step 2: Convert to fraction form
    907,918,998.30/1,359,008,716.05 = 649,638,672.30/x
  3. Step 3: Cross multiply
    907,918,998.30x = 1,359,008,716.05 × 649,638,672.30
  4. Step 4: Simplify right side
    907,918,998.30x = 882,864,617,938,849,664
  5. Step 5: Solve for x
    x = 882,864,617,938,849,664/907,918,998.30
  6. Step 6: Final answer
    x = 972,404,608.33

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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.