Home / 657,968,670.40-987,330,919.20-249,318,097.60

Finding the Fourth Proportional to 657,968,670.40, 987,330,919.20 and 249,318,097.60

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Solution

The fourth proportional to 657,968,670.40, 987,330,919.20 and 249,318,097.60 is: 374,120,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,968,670.40 : 987,330,919.20 = 249,318,097.60 : x
  2. Step 2: Convert to fraction form
    657,968,670.40/987,330,919.20 = 249,318,097.60/x
  3. Step 3: Cross multiply
    657,968,670.40x = 987,330,919.20 × 249,318,097.60
  4. Step 4: Simplify right side
    657,968,670.40x = 246,159,466,476,603,328
  5. Step 5: Solve for x
    x = 246,159,466,476,603,328/657,968,670.40
  6. Step 6: Final answer
    x = 374,120,345.77

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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.