Home / 76,919,199.35-106,148,806.09-42,115,128.26

Finding the Fourth Proportional to 76,919,199.35, 106,148,806.09 and 42,115,128.26

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Solution

The fourth proportional to 76,919,199.35, 106,148,806.09 and 42,115,128.26 is: 58,119,047.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,919,199.35 : 106,148,806.09 = 42,115,128.26 : x
  2. Step 2: Convert to fraction form
    76,919,199.35/106,148,806.09 = 42,115,128.26/x
  3. Step 3: Cross multiply
    76,919,199.35x = 106,148,806.09 × 42,115,128.26
  4. Step 4: Simplify right side
    76,919,199.35x = 4,470,470,582,490,188
  5. Step 5: Solve for x
    x = 4,470,470,582,490,188/76,919,199.35
  6. Step 6: Final answer
    x = 58,119,047.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.