Home / 658,685,386.71-908,987,213.37-361,330,030.13

Finding the Fourth Proportional to 658,685,386.71, 908,987,213.37 and 361,330,030.13

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Solution

The fourth proportional to 658,685,386.71, 908,987,213.37 and 361,330,030.13 is: 498,636,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,685,386.71 : 908,987,213.37 = 361,330,030.13 : x
  2. Step 2: Convert to fraction form
    658,685,386.71/908,987,213.37 = 361,330,030.13/x
  3. Step 3: Cross multiply
    658,685,386.71x = 908,987,213.37 × 361,330,030.13
  4. Step 4: Simplify right side
    658,685,386.71x = 328,444,377,194,766,848
  5. Step 5: Solve for x
    x = 328,444,377,194,766,848/658,685,386.71
  6. Step 6: Final answer
    x = 498,636,198.44

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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.