Home / 84,819,281.80-127,228,922.70-78,583,707.40

Finding the Fourth Proportional to 84,819,281.80, 127,228,922.70 and 78,583,707.40

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Solution

The fourth proportional to 84,819,281.80, 127,228,922.70 and 78,583,707.40 is: 117,875,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,819,281.80 : 127,228,922.70 = 78,583,707.40 : x
  2. Step 2: Convert to fraction form
    84,819,281.80/127,228,922.70 = 78,583,707.40/x
  3. Step 3: Cross multiply
    84,819,281.80x = 127,228,922.70 × 78,583,707.40
  4. Step 4: Simplify right side
    84,819,281.80x = 9,998,120,434,274,018
  5. Step 5: Solve for x
    x = 9,998,120,434,274,018/84,819,281.80
  6. Step 6: Final answer
    x = 117,875,561.10

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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.