Home / 1,388,881,398.34-1,916,658,227.72-753,801,899.94

Finding the Fourth Proportional to 1,388,881,398.34, 1,916,658,227.72 and 753,801,899.94

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Solution

The fourth proportional to 1,388,881,398.34, 1,916,658,227.72 and 753,801,899.94 is: 1,040,247,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,881,398.34 : 1,916,658,227.72 = 753,801,899.94 : x
  2. Step 2: Convert to fraction form
    1,388,881,398.34/1,916,658,227.72 = 753,801,899.94/x
  3. Step 3: Cross multiply
    1,388,881,398.34x = 1,916,658,227.72 × 753,801,899.94
  4. Step 4: Simplify right side
    1,388,881,398.34x = 1,444,780,613,580,917,248
  5. Step 5: Solve for x
    x = 1,444,780,613,580,917,248/1,388,881,398.34
  6. Step 6: Final answer
    x = 1,040,247,652.03

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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.