Home / 279,985,021.40-419,977,532.10-262,069,117.40

Finding the Fourth Proportional to 279,985,021.40, 419,977,532.10 and 262,069,117.40

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Solution

The fourth proportional to 279,985,021.40, 419,977,532.10 and 262,069,117.40 is: 393,103,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,985,021.40 : 419,977,532.10 = 262,069,117.40 : x
  2. Step 2: Convert to fraction form
    279,985,021.40/419,977,532.10 = 262,069,117.40/x
  3. Step 3: Cross multiply
    279,985,021.40x = 419,977,532.10 × 262,069,117.40
  4. Step 4: Simplify right side
    279,985,021.40x = 110,063,141,165,277,184
  5. Step 5: Solve for x
    x = 110,063,141,165,277,184/279,985,021.40
  6. Step 6: Final answer
    x = 393,103,676.10

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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.