Home / 72,795,025,881.60-109,192,538,822.40-20,450,213,145.60

Finding the Fourth Proportional to 72,795,025,881.60, 109,192,538,822.40 and 20,450,213,145.60

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Solution

The fourth proportional to 72,795,025,881.60, 109,192,538,822.40 and 20,450,213,145.60 is: 30,675,319,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,795,025,881.60 : 109,192,538,822.40 = 20,450,213,145.60 : x
  2. Step 2: Convert to fraction form
    72,795,025,881.60/109,192,538,822.40 = 20,450,213,145.60/x
  3. Step 3: Cross multiply
    72,795,025,881.60x = 109,192,538,822.40 × 20,450,213,145.60
  4. Step 4: Simplify right side
    72,795,025,881.60x = 2,233,010,692,827,282,407,424
  5. Step 5: Solve for x
    x = 2,233,010,692,827,282,407,424/72,795,025,881.60
  6. Step 6: Final answer
    x = 30,675,319,718.40

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Double scale
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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.