Home / 78,333,276.38-108,165,183.64-65,348,598.38

Finding the Fourth Proportional to 78,333,276.38, 108,165,183.64 and 65,348,598.38

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Solution

The fourth proportional to 78,333,276.38, 108,165,183.64 and 65,348,598.38 is: 90,235,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333,276.38 : 108,165,183.64 = 65,348,598.38 : x
  2. Step 2: Convert to fraction form
    78,333,276.38/108,165,183.64 = 65,348,598.38/x
  3. Step 3: Cross multiply
    78,333,276.38x = 108,165,183.64 × 65,348,598.38
  4. Step 4: Simplify right side
    78,333,276.38x = 7,068,443,143,685,109
  5. Step 5: Solve for x
    x = 7,068,443,143,685,109/78,333,276.38
  6. Step 6: Final answer
    x = 90,235,510.00

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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.