Home / 678,574,615.25-936,508,795.35-410,797,988.74

Finding the Fourth Proportional to 678,574,615.25, 936,508,795.35 and 410,797,988.74

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Solution

The fourth proportional to 678,574,615.25, 936,508,795.35 and 410,797,988.74 is: 566,947,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,574,615.25 : 936,508,795.35 = 410,797,988.74 : x
  2. Step 2: Convert to fraction form
    678,574,615.25/936,508,795.35 = 410,797,988.74/x
  3. Step 3: Cross multiply
    678,574,615.25x = 936,508,795.35 × 410,797,988.74
  4. Step 4: Simplify right side
    678,574,615.25x = 384,715,929,566,730,432
  5. Step 5: Solve for x
    x = 384,715,929,566,730,432/678,574,615.25
  6. Step 6: Final answer
    x = 566,947,128.47

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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.