Home / 143,514,873.71-215,097,420.88-74,389,567.82

Finding the Fourth Proportional to 143,514,873.71, 215,097,420.88 and 74,389,567.82

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Solution

The fourth proportional to 143,514,873.71, 215,097,420.88 and 74,389,567.82 is: 111,493,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,514,873.71 : 215,097,420.88 = 74,389,567.82 : x
  2. Step 2: Convert to fraction form
    143,514,873.71/215,097,420.88 = 74,389,567.82/x
  3. Step 3: Cross multiply
    143,514,873.71x = 215,097,420.88 × 74,389,567.82
  4. Step 4: Simplify right side
    143,514,873.71x = 16,001,004,179,090,576
  5. Step 5: Solve for x
    x = 16,001,004,179,090,576/143,514,873.71
  6. Step 6: Final answer
    x = 111,493,699.34

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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.