Home / 81,395,724,891.20-122,093,587,336.80-25,502,881,985.60

Finding the Fourth Proportional to 81,395,724,891.20, 122,093,587,336.80 and 25,502,881,985.60

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Solution

The fourth proportional to 81,395,724,891.20, 122,093,587,336.80 and 25,502,881,985.60 is: 38,254,322,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,395,724,891.20 : 122,093,587,336.80 = 25,502,881,985.60 : x
  2. Step 2: Convert to fraction form
    81,395,724,891.20/122,093,587,336.80 = 25,502,881,985.60/x
  3. Step 3: Cross multiply
    81,395,724,891.20x = 122,093,587,336.80 × 25,502,881,985.60
  4. Step 4: Simplify right side
    81,395,724,891.20x = 3,113,738,349,048,956,977,152
  5. Step 5: Solve for x
    x = 3,113,738,349,048,956,977,152/81,395,724,891.20
  6. Step 6: Final answer
    x = 38,254,322,978.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.