Home / 12,782,422,092.36-17,640,287,260.02-7,143,637,777.59

Finding the Fourth Proportional to 12,782,422,092.36, 17,640,287,260.02 and 7,143,637,777.59

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Solution

The fourth proportional to 12,782,422,092.36, 17,640,287,260.02 and 7,143,637,777.59 is: 9,858,524,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782,422,092.36 : 17,640,287,260.02 = 7,143,637,777.59 : x
  2. Step 2: Convert to fraction form
    12,782,422,092.36/17,640,287,260.02 = 7,143,637,777.59/x
  3. Step 3: Cross multiply
    12,782,422,092.36x = 17,640,287,260.02 × 7,143,637,777.59
  4. Step 4: Simplify right side
    12,782,422,092.36x = 126,015,822,478,218,461,184
  5. Step 5: Solve for x
    x = 126,015,822,478,218,461,184/12,782,422,092.36
  6. Step 6: Final answer
    x = 9,858,524,586.94

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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.