Home / 85,210,852.43-127,534,651.27-77,553,717.30

Finding the Fourth Proportional to 85,210,852.43, 127,534,651.27 and 77,553,717.30

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Solution

The fourth proportional to 85,210,852.43, 127,534,651.27 and 77,553,717.30 is: 116,074,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,210,852.43 : 127,534,651.27 = 77,553,717.30 : x
  2. Step 2: Convert to fraction form
    85,210,852.43/127,534,651.27 = 77,553,717.30/x
  3. Step 3: Cross multiply
    85,210,852.43x = 127,534,651.27 × 77,553,717.30
  4. Step 4: Simplify right side
    85,210,852.43x = 9,890,786,290,353,782
  5. Step 5: Solve for x
    x = 9,890,786,290,353,782/85,210,852.43
  6. Step 6: Final answer
    x = 116,074,255.90

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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.