Home / 190,981,314.41-286,179,581.65-128,501,203.52

Finding the Fourth Proportional to 190,981,314.41, 286,179,581.65 and 128,501,203.52

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Solution

The fourth proportional to 190,981,314.41, 286,179,581.65 and 128,501,203.52 is: 192,555,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,981,314.41 : 286,179,581.65 = 128,501,203.52 : x
  2. Step 2: Convert to fraction form
    190,981,314.41/286,179,581.65 = 128,501,203.52/x
  3. Step 3: Cross multiply
    190,981,314.41x = 286,179,581.65 × 128,501,203.52
  4. Step 4: Simplify right side
    190,981,314.41x = 36,774,420,664,010,064
  5. Step 5: Solve for x
    x = 36,774,420,664,010,064/190,981,314.41
  6. Step 6: Final answer
    x = 192,555,071.56

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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.