Home / 261,081,427.20-360,299,164.80-143,609,784

Finding the Fourth Proportional to 261,081,427.20, 360,299,164.80 and 143,609,784

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Solution

The fourth proportional to 261,081,427.20, 360,299,164.80 and 143,609,784 is: 198,185,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,081,427.20 : 360,299,164.80 = 143,609,784 : x
  2. Step 2: Convert to fraction form
    261,081,427.20/360,299,164.80 = 143,609,784/x
  3. Step 3: Cross multiply
    261,081,427.20x = 360,299,164.80 × 143,609,784
  4. Step 4: Simplify right side
    261,081,427.20x = 51,742,485,232,308,408
  5. Step 5: Solve for x
    x = 51,742,485,232,308,408/261,081,427.20
  6. Step 6: Final answer
    x = 198,185,239.71

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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.