Home / 154,166,947,894.62-212,751,000,311.40-86,497,119,845.10

Finding the Fourth Proportional to 154,166,947,894.62, 212,751,000,311.40 and 86,497,119,845.10

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Solution

The fourth proportional to 154,166,947,894.62, 212,751,000,311.40 and 86,497,119,845.10 is: 119,366,368,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,166,947,894.62 : 212,751,000,311.40 = 86,497,119,845.10 : x
  2. Step 2: Convert to fraction form
    154,166,947,894.62/212,751,000,311.40 = 86,497,119,845.10/x
  3. Step 3: Cross multiply
    154,166,947,894.62x = 212,751,000,311.40 × 86,497,119,845.10
  4. Step 4: Simplify right side
    154,166,947,894.62x = 18,402,348,771,100,074,180,608
  5. Step 5: Solve for x
    x = 18,402,348,771,100,074,180,608/154,166,947,894.62
  6. Step 6: Final answer
    x = 119,366,368,877.45

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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.