Home / 3,128,215,915.20-4,316,458,072.80-1,807,861,483.20

Finding the Fourth Proportional to 3,128,215,915.20, 4,316,458,072.80 and 1,807,861,483.20

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Solution

The fourth proportional to 3,128,215,915.20, 4,316,458,072.80 and 1,807,861,483.20 is: 2,494,571,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,215,915.20 : 4,316,458,072.80 = 1,807,861,483.20 : x
  2. Step 2: Convert to fraction form
    3,128,215,915.20/4,316,458,072.80 = 1,807,861,483.20/x
  3. Step 3: Cross multiply
    3,128,215,915.20x = 4,316,458,072.80 × 1,807,861,483.20
  4. Step 4: Simplify right side
    3,128,215,915.20x = 7,803,558,293,662,822,400
  5. Step 5: Solve for x
    x = 7,803,558,293,662,822,400/3,128,215,915.20
  6. Step 6: Final answer
    x = 2,494,571,508.23

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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.