Home / 1,274,156,768.80-1,911,235,153.20-401,025,777.86

Finding the Fourth Proportional to 1,274,156,768.80, 1,911,235,153.20 and 401,025,777.86

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Solution

The fourth proportional to 1,274,156,768.80, 1,911,235,153.20 and 401,025,777.86 is: 601,538,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,156,768.80 : 1,911,235,153.20 = 401,025,777.86 : x
  2. Step 2: Convert to fraction form
    1,274,156,768.80/1,911,235,153.20 = 401,025,777.86/x
  3. Step 3: Cross multiply
    1,274,156,768.80x = 1,911,235,153.20 × 401,025,777.86
  4. Step 4: Simplify right side
    1,274,156,768.80x = 766,454,563,985,406,336
  5. Step 5: Solve for x
    x = 766,454,563,985,406,336/1,274,156,768.80
  6. Step 6: Final answer
    x = 601,538,666.79

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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.