Home / 279,937,008.40-419,905,512.60-262,021,104.40

Finding the Fourth Proportional to 279,937,008.40, 419,905,512.60 and 262,021,104.40

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Solution

The fourth proportional to 279,937,008.40, 419,905,512.60 and 262,021,104.40 is: 393,031,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,008.40 : 419,905,512.60 = 262,021,104.40 : x
  2. Step 2: Convert to fraction form
    279,937,008.40/419,905,512.60 = 262,021,104.40/x
  3. Step 3: Cross multiply
    279,937,008.40x = 419,905,512.60 × 262,021,104.40
  4. Step 4: Simplify right side
    279,937,008.40x = 110,024,106,155,100,128
  5. Step 5: Solve for x
    x = 110,024,106,155,100,128/279,937,008.40
  6. Step 6: Final answer
    x = 393,031,656.60

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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.