Home / 212,909,649.60-318,767,277.60-206,937,681.60

Finding the Fourth Proportional to 212,909,649.60, 318,767,277.60 and 206,937,681.60

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Solution

The fourth proportional to 212,909,649.60, 318,767,277.60 and 206,937,681.60 is: 309,826,076.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,909,649.60 : 318,767,277.60 = 206,937,681.60 : x
  2. Step 2: Convert to fraction form
    212,909,649.60/318,767,277.60 = 206,937,681.60/x
  3. Step 3: Cross multiply
    212,909,649.60x = 318,767,277.60 × 206,937,681.60
  4. Step 4: Simplify right side
    212,909,649.60x = 65,964,961,396,487,616
  5. Step 5: Solve for x
    x = 65,964,961,396,487,616/212,909,649.60
  6. Step 6: Final answer
    x = 309,826,076.56

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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.