Home / 312,269,573.48-430,934,578.80-173,042,660.36

Finding the Fourth Proportional to 312,269,573.48, 430,934,578.80 and 173,042,660.36

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Solution

The fourth proportional to 312,269,573.48, 430,934,578.80 and 173,042,660.36 is: 238,800,294.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,269,573.48 : 430,934,578.80 = 173,042,660.36 : x
  2. Step 2: Convert to fraction form
    312,269,573.48/430,934,578.80 = 173,042,660.36/x
  3. Step 3: Cross multiply
    312,269,573.48x = 430,934,578.80 × 173,042,660.36
  4. Step 4: Simplify right side
    312,269,573.48x = 74,570,065,956,668,064
  5. Step 5: Solve for x
    x = 74,570,065,956,668,064/312,269,573.48
  6. Step 6: Final answer
    x = 238,800,294.01

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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.