Home / 103,618,749.76-142,942,252.77-61,773,329.41

Finding the Fourth Proportional to 103,618,749.76, 142,942,252.77 and 61,773,329.41

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Solution

The fourth proportional to 103,618,749.76, 142,942,252.77 and 61,773,329.41 is: 85,216,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618,749.76 : 142,942,252.77 = 61,773,329.41 : x
  2. Step 2: Convert to fraction form
    103,618,749.76/142,942,252.77 = 61,773,329.41/x
  3. Step 3: Cross multiply
    103,618,749.76x = 142,942,252.77 × 61,773,329.41
  4. Step 4: Simplify right side
    103,618,749.76x = 8,830,018,866,968,695
  5. Step 5: Solve for x
    x = 8,830,018,866,968,695/103,618,749.76
  6. Step 6: Final answer
    x = 85,216,419.69

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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.