Home / 208,593,347.40-312,765,605.10-127,872,246.60

Finding the Fourth Proportional to 208,593,347.40, 312,765,605.10 and 127,872,246.60

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Solution

The fourth proportional to 208,593,347.40, 312,765,605.10 and 127,872,246.60 is: 191,732,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,593,347.40 : 312,765,605.10 = 127,872,246.60 : x
  2. Step 2: Convert to fraction form
    208,593,347.40/312,765,605.10 = 127,872,246.60/x
  3. Step 3: Cross multiply
    208,593,347.40x = 312,765,605.10 × 127,872,246.60
  4. Step 4: Simplify right side
    208,593,347.40x = 39,994,040,583,345,416
  5. Step 5: Solve for x
    x = 39,994,040,583,345,416/208,593,347.40
  6. Step 6: Final answer
    x = 191,732,100.19

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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.