Home / 172,381,673,728.25-237,893,936,792.44-99,137,961,620.57

Finding the Fourth Proportional to 172,381,673,728.25, 237,893,936,792.44 and 99,137,961,620.57

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Solution

The fourth proportional to 172,381,673,728.25, 237,893,936,792.44 and 99,137,961,620.57 is: 136,814,543,364.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,381,673,728.25 : 237,893,936,792.44 = 99,137,961,620.57 : x
  2. Step 2: Convert to fraction form
    172,381,673,728.25/237,893,936,792.44 = 99,137,961,620.57/x
  3. Step 3: Cross multiply
    172,381,673,728.25x = 237,893,936,792.44 × 99,137,961,620.57
  4. Step 4: Simplify right side
    172,381,673,728.25x = 23,584,319,975,495,225,573,376
  5. Step 5: Solve for x
    x = 23,584,319,975,495,225,573,376/172,381,673,728.25
  6. Step 6: Final answer
    x = 136,814,543,364.25

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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.