Home / 633,142,378.49-873,735,819.65-354,685,862.12

Finding the Fourth Proportional to 633,142,378.49, 873,735,819.65 and 354,685,862.12

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Solution

The fourth proportional to 633,142,378.49, 873,735,819.65 and 354,685,862.12 is: 489,466,118.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,142,378.49 : 873,735,819.65 = 354,685,862.12 : x
  2. Step 2: Convert to fraction form
    633,142,378.49/873,735,819.65 = 354,685,862.12/x
  3. Step 3: Cross multiply
    633,142,378.49x = 873,735,819.65 × 354,685,862.12
  4. Step 4: Simplify right side
    633,142,378.49x = 309,901,742,451,542,976
  5. Step 5: Solve for x
    x = 309,901,742,451,542,976/633,142,378.49
  6. Step 6: Final answer
    x = 489,466,118.49

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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.