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Finding the Fourth Proportional to 618,495,317.69, 928,415,216.60 and 250,283,774.57

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Solution

The fourth proportional to 618,495,317.69, 928,415,216.60 and 250,283,774.57 is: 375,697,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,495,317.69 : 928,415,216.60 = 250,283,774.57 : x
  2. Step 2: Convert to fraction form
    618,495,317.69/928,415,216.60 = 250,283,774.57/x
  3. Step 3: Cross multiply
    618,495,317.69x = 928,415,216.60 × 250,283,774.57
  4. Step 4: Simplify right side
    618,495,317.69x = 232,367,264,781,818,848
  5. Step 5: Solve for x
    x = 232,367,264,781,818,848/618,495,317.69
  6. Step 6: Final answer
    x = 375,697,694.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.