Home / 386,300,553.60-579,450,830.40-127,555,708.80

Finding the Fourth Proportional to 386,300,553.60, 579,450,830.40 and 127,555,708.80

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Solution

The fourth proportional to 386,300,553.60, 579,450,830.40 and 127,555,708.80 is: 191,333,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,300,553.60 : 579,450,830.40 = 127,555,708.80 : x
  2. Step 2: Convert to fraction form
    386,300,553.60/579,450,830.40 = 127,555,708.80/x
  3. Step 3: Cross multiply
    386,300,553.60x = 579,450,830.40 × 127,555,708.80
  4. Step 4: Simplify right side
    386,300,553.60x = 73,912,261,386,420,576
  5. Step 5: Solve for x
    x = 73,912,261,386,420,576/386,300,553.60
  6. Step 6: Final answer
    x = 191,333,563.20

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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.