Home / 145,390,936.74-217,700,093.43-87,805,302.18

Finding the Fourth Proportional to 145,390,936.74, 217,700,093.43 and 87,805,302.18

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Solution

The fourth proportional to 145,390,936.74, 217,700,093.43 and 87,805,302.18 is: 131,474,649.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,390,936.74 : 217,700,093.43 = 87,805,302.18 : x
  2. Step 2: Convert to fraction form
    145,390,936.74/217,700,093.43 = 87,805,302.18/x
  3. Step 3: Cross multiply
    145,390,936.74x = 217,700,093.43 × 87,805,302.18
  4. Step 4: Simplify right side
    145,390,936.74x = 19,115,222,488,235,384
  5. Step 5: Solve for x
    x = 19,115,222,488,235,384/145,390,936.74
  6. Step 6: Final answer
    x = 131,474,649.77

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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.