Home / 78,155,907.59-117,085,886.22-52,169,853.31

Finding the Fourth Proportional to 78,155,907.59, 117,085,886.22 and 52,169,853.31

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Solution

The fourth proportional to 78,155,907.59, 117,085,886.22 and 52,169,853.31 is: 78,156,005.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,155,907.59 : 117,085,886.22 = 52,169,853.31 : x
  2. Step 2: Convert to fraction form
    78,155,907.59/117,085,886.22 = 52,169,853.31/x
  3. Step 3: Cross multiply
    78,155,907.59x = 117,085,886.22 × 52,169,853.31
  4. Step 4: Simplify right side
    78,155,907.59x = 6,108,353,508,768,751
  5. Step 5: Solve for x
    x = 6,108,353,508,768,751/78,155,907.59
  6. Step 6: Final answer
    x = 78,156,005.06

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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.