Home / 77,323,980.80-115,982,284.80-26,200,985.60

Finding the Fourth Proportional to 77,323,980.80, 115,982,284.80 and 26,200,985.60

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Solution

The fourth proportional to 77,323,980.80, 115,982,284.80 and 26,200,985.60 is: 39,300,229.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,323,980.80 : 115,982,284.80 = 26,200,985.60 : x
  2. Step 2: Convert to fraction form
    77,323,980.80/115,982,284.80 = 26,200,985.60/x
  3. Step 3: Cross multiply
    77,323,980.80x = 115,982,284.80 × 26,200,985.60
  4. Step 4: Simplify right side
    77,323,980.80x = 3,038,850,173,899,899
  5. Step 5: Solve for x
    x = 3,038,850,173,899,899/77,323,980.80
  6. Step 6: Final answer
    x = 39,300,229.28

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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.