Home / 285,570,579.11-393,942,362.51-186,509,312.39

Finding the Fourth Proportional to 285,570,579.11, 393,942,362.51 and 186,509,312.39

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Solution

The fourth proportional to 285,570,579.11, 393,942,362.51 and 186,509,312.39 is: 257,288,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,570,579.11 : 393,942,362.51 = 186,509,312.39 : x
  2. Step 2: Convert to fraction form
    285,570,579.11/393,942,362.51 = 186,509,312.39/x
  3. Step 3: Cross multiply
    285,570,579.11x = 393,942,362.51 × 186,509,312.39
  4. Step 4: Simplify right side
    285,570,579.11x = 73,473,919,154,483,344
  5. Step 5: Solve for x
    x = 73,473,919,154,483,344/285,570,579.11
  6. Step 6: Final answer
    x = 257,288,126.06

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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.