Home / 657,968,671.40-987,330,920.70-249,318,098.60

Finding the Fourth Proportional to 657,968,671.40, 987,330,920.70 and 249,318,098.60

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Solution

The fourth proportional to 657,968,671.40, 987,330,920.70 and 249,318,098.60 is: 374,120,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,968,671.40 : 987,330,920.70 = 249,318,098.60 : x
  2. Step 2: Convert to fraction form
    657,968,671.40/987,330,920.70 = 249,318,098.60/x
  3. Step 3: Cross multiply
    657,968,671.40x = 987,330,920.70 × 249,318,098.60
  4. Step 4: Simplify right side
    657,968,671.40x = 246,159,467,837,911,392
  5. Step 5: Solve for x
    x = 246,159,467,837,911,392/657,968,671.40
  6. Step 6: Final answer
    x = 374,120,347.27

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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.