Home / 15,278,145,439.36-21,083,841,720.03-8,503,818,638.31

Finding the Fourth Proportional to 15,278,145,439.36, 21,083,841,720.03 and 8,503,818,638.31

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Solution

The fourth proportional to 15,278,145,439.36, 21,083,841,720.03 and 8,503,818,638.31 is: 11,735,270,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278,145,439.36 : 21,083,841,720.03 = 8,503,818,638.31 : x
  2. Step 2: Convert to fraction form
    15,278,145,439.36/21,083,841,720.03 = 8,503,818,638.31/x
  3. Step 3: Cross multiply
    15,278,145,439.36x = 21,083,841,720.03 × 8,503,818,638.31
  4. Step 4: Simplify right side
    15,278,145,439.36x = 179,293,166,186,087,448,576
  5. Step 5: Solve for x
    x = 179,293,166,186,087,448,576/15,278,145,439.36
  6. Step 6: Final answer
    x = 11,735,270,285.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.