Home / 129,361,552,012.40-194,042,328,018.60-79,077,880,050.80

Finding the Fourth Proportional to 129,361,552,012.40, 194,042,328,018.60 and 79,077,880,050.80

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Solution

The fourth proportional to 129,361,552,012.40, 194,042,328,018.60 and 79,077,880,050.80 is: 118,616,820,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,361,552,012.40 : 194,042,328,018.60 = 79,077,880,050.80 : x
  2. Step 2: Convert to fraction form
    129,361,552,012.40/194,042,328,018.60 = 79,077,880,050.80/x
  3. Step 3: Cross multiply
    129,361,552,012.40x = 194,042,328,018.60 × 79,077,880,050.80
  4. Step 4: Simplify right side
    129,361,552,012.40x = 15,344,455,939,832,839,929,856
  5. Step 5: Solve for x
    x = 15,344,455,939,832,839,929,856/129,361,552,012.40
  6. Step 6: Final answer
    x = 118,616,820,076.20

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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.