Home / 685,167,598.76-1,027,791,021.10-193,839,710.72

Finding the Fourth Proportional to 685,167,598.76, 1,027,791,021.10 and 193,839,710.72

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Solution

The fourth proportional to 685,167,598.76, 1,027,791,021.10 and 193,839,710.72 is: 290,770,775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,167,598.76 : 1,027,791,021.10 = 193,839,710.72 : x
  2. Step 2: Convert to fraction form
    685,167,598.76/1,027,791,021.10 = 193,839,710.72/x
  3. Step 3: Cross multiply
    685,167,598.76x = 1,027,791,021.10 × 193,839,710.72
  4. Step 4: Simplify right side
    685,167,598.76x = 199,226,714,210,637,408
  5. Step 5: Solve for x
    x = 199,226,714,210,637,408/685,167,598.76
  6. Step 6: Final answer
    x = 290,770,775.75

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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.