Home / 168,788,320.80-253,227,930.47-86,862,557.22

Finding the Fourth Proportional to 168,788,320.80, 253,227,930.47 and 86,862,557.22

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Solution

The fourth proportional to 168,788,320.80, 253,227,930.47 and 86,862,557.22 is: 130,317,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,788,320.80 : 253,227,930.47 = 86,862,557.22 : x
  2. Step 2: Convert to fraction form
    168,788,320.80/253,227,930.47 = 86,862,557.22/x
  3. Step 3: Cross multiply
    168,788,320.80x = 253,227,930.47 × 86,862,557.22
  4. Step 4: Simplify right side
    168,788,320.80x = 21,996,025,600,152,556
  5. Step 5: Solve for x
    x = 21,996,025,600,152,556/168,788,320.80
  6. Step 6: Final answer
    x = 130,317,225.12

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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.