Home / 77,340,340.80-106,727,538.60-42,533,027.28

Finding the Fourth Proportional to 77,340,340.80, 106,727,538.60 and 42,533,027.28

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Solution

The fourth proportional to 77,340,340.80, 106,727,538.60 and 42,533,027.28 is: 58,694,405.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,340,340.80 : 106,727,538.60 = 42,533,027.28 : x
  2. Step 2: Convert to fraction form
    77,340,340.80/106,727,538.60 = 42,533,027.28/x
  3. Step 3: Cross multiply
    77,340,340.80x = 106,727,538.60 × 42,533,027.28
  4. Step 4: Simplify right side
    77,340,340.80x = 4,539,445,310,801,053
  5. Step 5: Solve for x
    x = 4,539,445,310,801,053/77,340,340.80
  6. Step 6: Final answer
    x = 58,694,405.32

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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.