Home / 766,626,896.11-1,058,817,791.78-515,294,943.16

Finding the Fourth Proportional to 766,626,896.11, 1,058,817,791.78 and 515,294,943.16

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Solution

The fourth proportional to 766,626,896.11, 1,058,817,791.78 and 515,294,943.16 is: 711,693,597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,626,896.11 : 1,058,817,791.78 = 515,294,943.16 : x
  2. Step 2: Convert to fraction form
    766,626,896.11/1,058,817,791.78 = 515,294,943.16/x
  3. Step 3: Cross multiply
    766,626,896.11x = 1,058,817,791.78 × 515,294,943.16
  4. Step 4: Simplify right side
    766,626,896.11x = 545,603,453,832,071,808
  5. Step 5: Solve for x
    x = 545,603,453,832,071,808/766,626,896.11
  6. Step 6: Final answer
    x = 711,693,597.76

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Double scale
Find fourth proportional to 766,626,897.11, 1,058,817,793.16 and 515,294,944.16
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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.