Home / 649,938,867.10-896,915,636.61-371,486,369.41

Finding the Fourth Proportional to 649,938,867.10, 896,915,636.61 and 371,486,369.41

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Solution

The fourth proportional to 649,938,867.10, 896,915,636.61 and 371,486,369.41 is: 512,651,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,867.10 : 896,915,636.61 = 371,486,369.41 : x
  2. Step 2: Convert to fraction form
    649,938,867.10/896,915,636.61 = 371,486,369.41/x
  3. Step 3: Cross multiply
    649,938,867.10x = 896,915,636.61 × 371,486,369.41
  4. Step 4: Simplify right side
    649,938,867.10x = 333,191,933,511,307,840
  5. Step 5: Solve for x
    x = 333,191,933,511,307,840/649,938,867.10
  6. Step 6: Final answer
    x = 512,651,189.79

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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.