Home / 153,954,940,081.26-212,458,274,941.40-85,371,184,824.80

Finding the Fourth Proportional to 153,954,940,081.26, 212,458,274,941.40 and 85,371,184,824.80

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Solution

The fourth proportional to 153,954,940,081.26, 212,458,274,941.40 and 85,371,184,824.80 is: 117,812,488,823.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,954,940,081.26 : 212,458,274,941.40 = 85,371,184,824.80 : x
  2. Step 2: Convert to fraction form
    153,954,940,081.26/212,458,274,941.40 = 85,371,184,824.80/x
  3. Step 3: Cross multiply
    153,954,940,081.26x = 212,458,274,941.40 × 85,371,184,824.80
  4. Step 4: Simplify right side
    153,954,940,081.26x = 18,137,814,657,580,434,194,432
  5. Step 5: Solve for x
    x = 18,137,814,657,580,434,194,432/153,954,940,081.26
  6. Step 6: Final answer
    x = 117,812,488,823.07

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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.