Home / 771,122,100.78-1,064,118,653.01-418,690,025.10

Finding the Fourth Proportional to 771,122,100.78, 1,064,118,653.01 and 418,690,025.10

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Solution

The fourth proportional to 771,122,100.78, 1,064,118,653.01 and 418,690,025.10 is: 577,776,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,122,100.78 : 1,064,118,653.01 = 418,690,025.10 : x
  2. Step 2: Convert to fraction form
    771,122,100.78/1,064,118,653.01 = 418,690,025.10/x
  3. Step 3: Cross multiply
    771,122,100.78x = 1,064,118,653.01 × 418,690,025.10
  4. Step 4: Simplify right side
    771,122,100.78x = 445,535,865,538,135,104
  5. Step 5: Solve for x
    x = 445,535,865,538,135,104/771,122,100.78
  6. Step 6: Final answer
    x = 577,776,029.36

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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.