Home / 208,168,545-287,278,890.66-115,340,367.72

Finding the Fourth Proportional to 208,168,545, 287,278,890.66 and 115,340,367.72

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Solution

The fourth proportional to 208,168,545, 287,278,890.66 and 115,340,367.72 is: 159,173,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,168,545 : 287,278,890.66 = 115,340,367.72 : x
  2. Step 2: Convert to fraction form
    208,168,545/287,278,890.66 = 115,340,367.72/x
  3. Step 3: Cross multiply
    208,168,545x = 287,278,890.66 × 115,340,367.72
  4. Step 4: Simplify right side
    208,168,545x = 33,134,852,886,918,076
  5. Step 5: Solve for x
    x = 33,134,852,886,918,076/208,168,545
  6. Step 6: Final answer
    x = 159,173,197.31

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1.5x scale

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.