Home / 1,121,010,796-1,547,041,896.60-644,701,536.96

Finding the Fourth Proportional to 1,121,010,796, 1,547,041,896.60 and 644,701,536.96

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Solution

The fourth proportional to 1,121,010,796, 1,547,041,896.60 and 644,701,536.96 is: 889,715,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,010,796 : 1,547,041,896.60 = 644,701,536.96 : x
  2. Step 2: Convert to fraction form
    1,121,010,796/1,547,041,896.60 = 644,701,536.96/x
  3. Step 3: Cross multiply
    1,121,010,796x = 1,547,041,896.60 × 644,701,536.96
  4. Step 4: Simplify right side
    1,121,010,796x = 997,380,288,479,533,440
  5. Step 5: Solve for x
    x = 997,380,288,479,533,440/1,121,010,796
  6. Step 6: Final answer
    x = 889,715,149.97

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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.