Home / 129,361,552,009.40-194,042,328,014.10-79,077,880,047.80

Finding the Fourth Proportional to 129,361,552,009.40, 194,042,328,014.10 and 79,077,880,047.80

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Solution

The fourth proportional to 129,361,552,009.40, 194,042,328,014.10 and 79,077,880,047.80 is: 118,616,820,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,361,552,009.40 : 194,042,328,014.10 = 79,077,880,047.80 : x
  2. Step 2: Convert to fraction form
    129,361,552,009.40/194,042,328,014.10 = 79,077,880,047.80/x
  3. Step 3: Cross multiply
    129,361,552,009.40x = 194,042,328,014.10 × 79,077,880,047.80
  4. Step 4: Simplify right side
    129,361,552,009.40x = 15,344,455,938,894,861,434,880
  5. Step 5: Solve for x
    x = 15,344,455,938,894,861,434,880/129,361,552,009.40
  6. Step 6: Final answer
    x = 118,616,820,071.70

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1.5x scale

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.