Home / 142,905,473.34-197,212,953.07-80,186,210.60

Finding the Fourth Proportional to 142,905,473.34, 197,212,953.07 and 80,186,210.60

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Solution

The fourth proportional to 142,905,473.34, 197,212,953.07 and 80,186,210.60 is: 110,658,878.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,905,473.34 : 197,212,953.07 = 80,186,210.60 : x
  2. Step 2: Convert to fraction form
    142,905,473.34/197,212,953.07 = 80,186,210.60/x
  3. Step 3: Cross multiply
    142,905,473.34x = 197,212,953.07 × 80,186,210.60
  4. Step 4: Simplify right side
    142,905,473.34x = 15,813,759,387,691,778
  5. Step 5: Solve for x
    x = 15,813,759,387,691,778/142,905,473.34
  6. Step 6: Final answer
    x = 110,658,878.34

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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.