Home / 72,790,392,002.80-109,185,588,004.20-61,035,767,388.40

Finding the Fourth Proportional to 72,790,392,002.80, 109,185,588,004.20 and 61,035,767,388.40

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Solution

The fourth proportional to 72,790,392,002.80, 109,185,588,004.20 and 61,035,767,388.40 is: 91,553,651,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,790,392,002.80 : 109,185,588,004.20 = 61,035,767,388.40 : x
  2. Step 2: Convert to fraction form
    72,790,392,002.80/109,185,588,004.20 = 61,035,767,388.40/x
  3. Step 3: Cross multiply
    72,790,392,002.80x = 109,185,588,004.20 × 61,035,767,388.40
  4. Step 4: Simplify right side
    72,790,392,002.80x = 6,664,226,151,590,028,902,400
  5. Step 5: Solve for x
    x = 6,664,226,151,590,028,902,400/72,790,392,002.80
  6. Step 6: Final answer
    x = 91,553,651,082.60

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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.