Home / 936,487,468.68-1,292,432,068.83-518,930,732.04

Finding the Fourth Proportional to 936,487,468.68, 1,292,432,068.83 and 518,930,732.04

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Solution

The fourth proportional to 936,487,468.68, 1,292,432,068.83 and 518,930,732.04 is: 716,168,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,487,468.68 : 1,292,432,068.83 = 518,930,732.04 : x
  2. Step 2: Convert to fraction form
    936,487,468.68/1,292,432,068.83 = 518,930,732.04/x
  3. Step 3: Cross multiply
    936,487,468.68x = 1,292,432,068.83 × 518,930,732.04
  4. Step 4: Simplify right side
    936,487,468.68x = 670,682,719,589,923,584
  5. Step 5: Solve for x
    x = 670,682,719,589,923,584/936,487,468.68
  6. Step 6: Final answer
    x = 716,168,386.68

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1.5x scale

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.