Home / 434,178,889.60-651,268,334.40-431,155,580.80

Finding the Fourth Proportional to 434,178,889.60, 651,268,334.40 and 431,155,580.80

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Solution

The fourth proportional to 434,178,889.60, 651,268,334.40 and 431,155,580.80 is: 646,733,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,178,889.60 : 651,268,334.40 = 431,155,580.80 : x
  2. Step 2: Convert to fraction form
    434,178,889.60/651,268,334.40 = 431,155,580.80/x
  3. Step 3: Cross multiply
    434,178,889.60x = 651,268,334.40 × 431,155,580.80
  4. Step 4: Simplify right side
    434,178,889.60x = 280,797,976,974,880,608
  5. Step 5: Solve for x
    x = 280,797,976,974,880,608/434,178,889.60
  6. Step 6: Final answer
    x = 646,733,371.20

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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.