Home / 149,053,040.96-205,699,942.51-86,331,875.92

Finding the Fourth Proportional to 149,053,040.96, 205,699,942.51 and 86,331,875.92

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Solution

The fourth proportional to 149,053,040.96, 205,699,942.51 and 86,331,875.92 is: 119,141,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,053,040.96 : 205,699,942.51 = 86,331,875.92 : x
  2. Step 2: Convert to fraction form
    149,053,040.96/205,699,942.51 = 86,331,875.92/x
  3. Step 3: Cross multiply
    149,053,040.96x = 205,699,942.51 × 86,331,875.92
  4. Step 4: Simplify right side
    149,053,040.96x = 17,758,461,912,442,178
  5. Step 5: Solve for x
    x = 17,758,461,912,442,178/149,053,040.96
  6. Step 6: Final answer
    x = 119,141,896.05

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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.