Home / 186,619,603.32-280,054,265.04-77,444,770.68

Finding the Fourth Proportional to 186,619,603.32, 280,054,265.04 and 77,444,770.68

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Solution

The fourth proportional to 186,619,603.32, 280,054,265.04 and 77,444,770.68 is: 116,218,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,619,603.32 : 280,054,265.04 = 77,444,770.68 : x
  2. Step 2: Convert to fraction form
    186,619,603.32/280,054,265.04 = 77,444,770.68/x
  3. Step 3: Cross multiply
    186,619,603.32x = 280,054,265.04 × 77,444,770.68
  4. Step 4: Simplify right side
    186,619,603.32x = 21,688,738,333,978,744
  5. Step 5: Solve for x
    x = 21,688,738,333,978,744/186,619,603.32
  6. Step 6: Final answer
    x = 116,218,971.36

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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.