Home / 123,425,215.71-185,168,660.67-87,104,503.86

Finding the Fourth Proportional to 123,425,215.71, 185,168,660.67 and 87,104,503.86

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Solution

The fourth proportional to 123,425,215.71, 185,168,660.67 and 87,104,503.86 is: 130,678,518.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,425,215.71 : 185,168,660.67 = 87,104,503.86 : x
  2. Step 2: Convert to fraction form
    123,425,215.71/185,168,660.67 = 87,104,503.86/x
  3. Step 3: Cross multiply
    123,425,215.71x = 185,168,660.67 × 87,104,503.86
  4. Step 4: Simplify right side
    123,425,215.71x = 16,129,024,318,081,044
  5. Step 5: Solve for x
    x = 16,129,024,318,081,044/123,425,215.71
  6. Step 6: Final answer
    x = 130,678,518.37

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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.