Home / 191,818,458.30-287,727,687.45-70,634,163.90

Finding the Fourth Proportional to 191,818,458.30, 287,727,687.45 and 70,634,163.90

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Solution

The fourth proportional to 191,818,458.30, 287,727,687.45 and 70,634,163.90 is: 105,951,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,818,458.30 : 287,727,687.45 = 70,634,163.90 : x
  2. Step 2: Convert to fraction form
    191,818,458.30/287,727,687.45 = 70,634,163.90/x
  3. Step 3: Cross multiply
    191,818,458.30x = 287,727,687.45 × 70,634,163.90
  4. Step 4: Simplify right side
    191,818,458.30x = 20,323,404,633,911,272
  5. Step 5: Solve for x
    x = 20,323,404,633,911,272/191,818,458.30
  6. Step 6: Final answer
    x = 105,951,245.85

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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.