Home / 222,932,612.13-307,629,004.10-128,852,853.59

Finding the Fourth Proportional to 222,932,612.13, 307,629,004.10 and 128,852,853.59

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Solution

The fourth proportional to 222,932,612.13, 307,629,004.10 and 128,852,853.59 is: 177,806,533.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,932,612.13 : 307,629,004.10 = 128,852,853.59 : x
  2. Step 2: Convert to fraction form
    222,932,612.13/307,629,004.10 = 128,852,853.59/x
  3. Step 3: Cross multiply
    222,932,612.13x = 307,629,004.10 × 128,852,853.59
  4. Step 4: Simplify right side
    222,932,612.13x = 39,638,875,023,152,400
  5. Step 5: Solve for x
    x = 39,638,875,023,152,400/222,932,612.13
  6. Step 6: Final answer
    x = 177,806,533.75

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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.