Home / 393,841,364.80-590,762,047.20-189,768,020.80

Finding the Fourth Proportional to 393,841,364.80, 590,762,047.20 and 189,768,020.80

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Solution

The fourth proportional to 393,841,364.80, 590,762,047.20 and 189,768,020.80 is: 284,652,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,841,364.80 : 590,762,047.20 = 189,768,020.80 : x
  2. Step 2: Convert to fraction form
    393,841,364.80/590,762,047.20 = 189,768,020.80/x
  3. Step 3: Cross multiply
    393,841,364.80x = 590,762,047.20 × 189,768,020.80
  4. Step 4: Simplify right side
    393,841,364.80x = 112,107,744,460,900,192
  5. Step 5: Solve for x
    x = 112,107,744,460,900,192/393,841,364.80
  6. Step 6: Final answer
    x = 284,652,031.20

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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.