Home / 102,930,580.40-142,046,668.82-55,889,636.56

Finding the Fourth Proportional to 102,930,580.40, 142,046,668.82 and 55,889,636.56

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Solution

The fourth proportional to 102,930,580.40, 142,046,668.82 and 55,889,636.56 is: 77,129,038.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,930,580.40 : 142,046,668.82 = 55,889,636.56 : x
  2. Step 2: Convert to fraction form
    102,930,580.40/142,046,668.82 = 55,889,636.56/x
  3. Step 3: Cross multiply
    102,930,580.40x = 142,046,668.82 × 55,889,636.56
  4. Step 4: Simplify right side
    102,930,580.40x = 7,938,936,694,693,091
  5. Step 5: Solve for x
    x = 7,938,936,694,693,091/102,930,580.40
  6. Step 6: Final answer
    x = 77,129,038.46

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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.