Home / 285,570,581.36-393,942,365.62-186,509,314.64

Finding the Fourth Proportional to 285,570,581.36, 393,942,365.62 and 186,509,314.64

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Solution

The fourth proportional to 285,570,581.36, 393,942,365.62 and 186,509,314.64 is: 257,288,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,570,581.36 : 393,942,365.62 = 186,509,314.64 : x
  2. Step 2: Convert to fraction form
    285,570,581.36/393,942,365.62 = 186,509,314.64/x
  3. Step 3: Cross multiply
    285,570,581.36x = 393,942,365.62 × 186,509,314.64
  4. Step 4: Simplify right side
    285,570,581.36x = 73,473,920,619,965,088
  5. Step 5: Solve for x
    x = 73,473,920,619,965,088/285,570,581.36
  6. Step 6: Final answer
    x = 257,288,129.16

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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.