Home / 1,117,116,530.72-1,541,620,794.12-647,490,249.80

Finding the Fourth Proportional to 1,117,116,530.72, 1,541,620,794.12 and 647,490,249.80

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Solution

The fourth proportional to 1,117,116,530.72, 1,541,620,794.12 and 647,490,249.80 is: 893,536,534.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,116,530.72 : 1,541,620,794.12 = 647,490,249.80 : x
  2. Step 2: Convert to fraction form
    1,117,116,530.72/1,541,620,794.12 = 647,490,249.80/x
  3. Step 3: Cross multiply
    1,117,116,530.72x = 1,541,620,794.12 × 647,490,249.80
  4. Step 4: Simplify right side
    1,117,116,530.72x = 998,184,433,081,633,024
  5. Step 5: Solve for x
    x = 998,184,433,081,633,024/1,117,116,530.72
  6. Step 6: Final answer
    x = 893,536,534.13

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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.