Home / 1,442,127,658.50-1,990,220,079.06-807,042,779.64

Finding the Fourth Proportional to 1,442,127,658.50, 1,990,220,079.06 and 807,042,779.64

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Solution

The fourth proportional to 1,442,127,658.50, 1,990,220,079.06 and 807,042,779.64 is: 1,113,765,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,127,658.50 : 1,990,220,079.06 = 807,042,779.64 : x
  2. Step 2: Convert to fraction form
    1,442,127,658.50/1,990,220,079.06 = 807,042,779.64/x
  3. Step 3: Cross multiply
    1,442,127,658.50x = 1,990,220,079.06 × 807,042,779.64
  4. Step 4: Simplify right side
    1,442,127,658.50x = 1,606,192,744,699,922,944
  5. Step 5: Solve for x
    x = 1,606,192,744,699,922,944/1,442,127,658.50
  6. Step 6: Final answer
    x = 1,113,765,993.76

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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.