Home / 205,319,539.92-307,979,309.88-69,004,923.60

Finding the Fourth Proportional to 205,319,539.92, 307,979,309.88 and 69,004,923.60

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Solution

The fourth proportional to 205,319,539.92, 307,979,309.88 and 69,004,923.60 is: 103,507,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,319,539.92 : 307,979,309.88 = 69,004,923.60 : x
  2. Step 2: Convert to fraction form
    205,319,539.92/307,979,309.88 = 69,004,923.60/x
  3. Step 3: Cross multiply
    205,319,539.92x = 307,979,309.88 × 69,004,923.60
  4. Step 4: Simplify right side
    205,319,539.92x = 21,252,088,748,650,124
  5. Step 5: Solve for x
    x = 21,252,088,748,650,124/205,319,539.92
  6. Step 6: Final answer
    x = 103,507,385.40

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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.