Home / 657,968,572.40-987,330,772.20-249,317,999.60

Finding the Fourth Proportional to 657,968,572.40, 987,330,772.20 and 249,317,999.60

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Solution

The fourth proportional to 657,968,572.40, 987,330,772.20 and 249,317,999.60 is: 374,120,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,968,572.40 : 987,330,772.20 = 249,317,999.60 : x
  2. Step 2: Convert to fraction form
    657,968,572.40/987,330,772.20 = 249,317,999.60/x
  3. Step 3: Cross multiply
    657,968,572.40x = 987,330,772.20 × 249,317,999.60
  4. Step 4: Simplify right side
    657,968,572.40x = 246,159,333,068,427,296
  5. Step 5: Solve for x
    x = 246,159,333,068,427,296/657,968,572.40
  6. Step 6: Final answer
    x = 374,120,198.74

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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.