Home / 470,309,942-649,030,243.61-258,630,422.56

Finding the Fourth Proportional to 470,309,942, 649,030,243.61 and 258,630,422.56

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Solution

The fourth proportional to 470,309,942, 649,030,243.61 and 258,630,422.56 is: 356,911,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,309,942 : 649,030,243.61 = 258,630,422.56 : x
  2. Step 2: Convert to fraction form
    470,309,942/649,030,243.61 = 258,630,422.56/x
  3. Step 3: Cross multiply
    470,309,942x = 649,030,243.61 × 258,630,422.56
  4. Step 4: Simplify right side
    470,309,942x = 167,858,966,159,074,048
  5. Step 5: Solve for x
    x = 167,858,966,159,074,048/470,309,942
  6. Step 6: Final answer
    x = 356,911,370.93

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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.