Home / 518,931,085,263.70-778,112,866,968.80-412,051,915,654.31

Finding the Fourth Proportional to 518,931,085,263.70, 778,112,866,968.80 and 412,051,915,654.31

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Solution

The fourth proportional to 518,931,085,263.70, 778,112,866,968.80 and 412,051,915,654.31 is: 617,852,556,022.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,931,085,263.70 : 778,112,866,968.80 = 412,051,915,654.31 : x
  2. Step 2: Convert to fraction form
    518,931,085,263.70/778,112,866,968.80 = 412,051,915,654.31/x
  3. Step 3: Cross multiply
    518,931,085,263.70x = 778,112,866,968.80 × 412,051,915,654.31
  4. Step 4: Simplify right side
    518,931,085,263.70x = 320,622,897,429,761,331,560,448
  5. Step 5: Solve for x
    x = 320,622,897,429,761,331,560,448/518,931,085,263.70
  6. Step 6: Final answer
    x = 617,852,556,022.61

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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.