Home / 285,570,582.36-393,942,367-186,509,315.64

Finding the Fourth Proportional to 285,570,582.36, 393,942,367 and 186,509,315.64

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Solution

The fourth proportional to 285,570,582.36, 393,942,367 and 186,509,315.64 is: 257,288,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,570,582.36 : 393,942,367 = 186,509,315.64 : x
  2. Step 2: Convert to fraction form
    285,570,582.36/393,942,367 = 186,509,315.64/x
  3. Step 3: Cross multiply
    285,570,582.36x = 393,942,367 × 186,509,315.64
  4. Step 4: Simplify right side
    285,570,582.36x = 73,473,921,270,771,712
  5. Step 5: Solve for x
    x = 73,473,921,270,771,712/285,570,582.36
  6. Step 6: Final answer
    x = 257,288,130.53

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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.