Home / 129,057,611,328.04-178,100,057,329.39-70,397,711,648.85

Finding the Fourth Proportional to 129,057,611,328.04, 178,100,057,329.39 and 70,397,711,648.85

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Solution

The fourth proportional to 129,057,611,328.04, 178,100,057,329.39 and 70,397,711,648.85 is: 97,149,144,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,057,611,328.04 : 178,100,057,329.39 = 70,397,711,648.85 : x
  2. Step 2: Convert to fraction form
    129,057,611,328.04/178,100,057,329.39 = 70,397,711,648.85/x
  3. Step 3: Cross multiply
    129,057,611,328.04x = 178,100,057,329.39 × 70,397,711,648.85
  4. Step 4: Simplify right side
    129,057,611,328.04x = 12,537,836,480,518,053,429,248
  5. Step 5: Solve for x
    x = 12,537,836,480,518,053,429,248/129,057,611,328.04
  6. Step 6: Final answer
    x = 97,149,144,103.17

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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.