Home / 208,672,762.95-287,957,172.42-115,847,291.88

Finding the Fourth Proportional to 208,672,762.95, 287,957,172.42 and 115,847,291.88

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Solution

The fourth proportional to 208,672,762.95, 287,957,172.42 and 115,847,291.88 is: 159,863,022.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,672,762.95 : 287,957,172.42 = 115,847,291.88 : x
  2. Step 2: Convert to fraction form
    208,672,762.95/287,957,172.42 = 115,847,291.88/x
  3. Step 3: Cross multiply
    208,672,762.95x = 287,957,172.42 × 115,847,291.88
  4. Step 4: Simplify right side
    208,672,762.95x = 33,359,058,602,279,228
  5. Step 5: Solve for x
    x = 33,359,058,602,279,228/208,672,762.95
  6. Step 6: Final answer
    x = 159,863,022.52

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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.