Home / 860,825,493,779.90-1,187,932,121,660.90-470,192,306,663.38

Finding the Fourth Proportional to 860,825,493,779.90, 1,187,932,121,660.90 and 470,192,306,663.38

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Solution

The fourth proportional to 860,825,493,779.90, 1,187,932,121,660.90 and 470,192,306,663.38 is: 648,861,527,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,825,493,779.90 : 1,187,932,121,660.90 = 470,192,306,663.38 : x
  2. Step 2: Convert to fraction form
    860,825,493,779.90/1,187,932,121,660.90 = 470,192,306,663.38/x
  3. Step 3: Cross multiply
    860,825,493,779.90x = 1,187,932,121,660.90 × 470,192,306,663.38
  4. Step 4: Simplify right side
    860,825,493,779.90x = 558,556,544,443,261,499,998,208
  5. Step 5: Solve for x
    x = 558,556,544,443,261,499,998,208/860,825,493,779.90
  6. Step 6: Final answer
    x = 648,861,527,079.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.