Home / 13,379,563,336.50-18,458,571,898.21-7,660,791,689.40

Finding the Fourth Proportional to 13,379,563,336.50, 18,458,571,898.21 and 7,660,791,689.40

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Solution

The fourth proportional to 13,379,563,336.50, 18,458,571,898.21 and 7,660,791,689.40 is: 10,568,900,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379,563,336.50 : 18,458,571,898.21 = 7,660,791,689.40 : x
  2. Step 2: Convert to fraction form
    13,379,563,336.50/18,458,571,898.21 = 7,660,791,689.40/x
  3. Step 3: Cross multiply
    13,379,563,336.50x = 18,458,571,898.21 × 7,660,791,689.40
  4. Step 4: Simplify right side
    13,379,563,336.50x = 141,407,274,196,034,076,672
  5. Step 5: Solve for x
    x = 141,407,274,196,034,076,672/13,379,563,336.50
  6. Step 6: Final answer
    x = 10,568,900,541.79

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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.