Home / 86,287,890.69-128,959,031.75-62,993,687.75

Finding the Fourth Proportional to 86,287,890.69, 128,959,031.75 and 62,993,687.75

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Solution

The fourth proportional to 86,287,890.69, 128,959,031.75 and 62,993,687.75 is: 94,145,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,287,890.69 : 128,959,031.75 = 62,993,687.75 : x
  2. Step 2: Convert to fraction form
    86,287,890.69/128,959,031.75 = 62,993,687.75/x
  3. Step 3: Cross multiply
    86,287,890.69x = 128,959,031.75 × 62,993,687.75
  4. Step 4: Simplify right side
    86,287,890.69x = 8,123,604,977,642,072
  5. Step 5: Solve for x
    x = 8,123,604,977,642,072/86,287,890.69
  6. Step 6: Final answer
    x = 94,145,365.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.