Home / 278,685,775.98-384,229,359.81-228,264,244.59

Finding the Fourth Proportional to 278,685,775.98, 384,229,359.81 and 228,264,244.59

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Solution

The fourth proportional to 278,685,775.98, 384,229,359.81 and 228,264,244.59 is: 314,712,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,685,775.98 : 384,229,359.81 = 228,264,244.59 : x
  2. Step 2: Convert to fraction form
    278,685,775.98/384,229,359.81 = 228,264,244.59/x
  3. Step 3: Cross multiply
    278,685,775.98x = 384,229,359.81 × 228,264,244.59
  4. Step 4: Simplify right side
    278,685,775.98x = 87,705,824,566,328,960
  5. Step 5: Solve for x
    x = 87,705,824,566,328,960/278,685,775.98
  6. Step 6: Final answer
    x = 314,712,239.11

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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.