Home / 541,792,985.76-747,661,603.02-318,789,111.60

Finding the Fourth Proportional to 541,792,985.76, 747,661,603.02 and 318,789,111.60

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Solution

The fourth proportional to 541,792,985.76, 747,661,603.02 and 318,789,111.60 is: 439,921,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,792,985.76 : 747,661,603.02 = 318,789,111.60 : x
  2. Step 2: Convert to fraction form
    541,792,985.76/747,661,603.02 = 318,789,111.60/x
  3. Step 3: Cross multiply
    541,792,985.76x = 747,661,603.02 × 318,789,111.60
  4. Step 4: Simplify right side
    541,792,985.76x = 238,346,378,204,177,696
  5. Step 5: Solve for x
    x = 238,346,378,204,177,696/541,792,985.76
  6. Step 6: Final answer
    x = 439,921,491.18

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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.