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Finding the Fourth Proportional to 519,953,240.60, 779,929,813.54 and 228,820,363.28

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Solution

The fourth proportional to 519,953,240.60, 779,929,813.54 and 228,820,363.28 is: 343,230,524.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,953,240.60 : 779,929,813.54 = 228,820,363.28 : x
  2. Step 2: Convert to fraction form
    519,953,240.60/779,929,813.54 = 228,820,363.28/x
  3. Step 3: Cross multiply
    519,953,240.60x = 779,929,813.54 × 228,820,363.28
  4. Step 4: Simplify right side
    519,953,240.60x = 178,463,823,267,125,440
  5. Step 5: Solve for x
    x = 178,463,823,267,125,440/519,953,240.60
  6. Step 6: Final answer
    x = 343,230,524.08

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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.