Home / 76,927,621.80-115,293,455.10-31,438,021.80

Finding the Fourth Proportional to 76,927,621.80, 115,293,455.10 and 31,438,021.80

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Solution

The fourth proportional to 76,927,621.80, 115,293,455.10 and 31,438,021.80 is: 47,116,992.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,927,621.80 : 115,293,455.10 = 31,438,021.80 : x
  2. Step 2: Convert to fraction form
    76,927,621.80/115,293,455.10 = 31,438,021.80/x
  3. Step 3: Cross multiply
    76,927,621.80x = 115,293,455.10 × 31,438,021.80
  4. Step 4: Simplify right side
    76,927,621.80x = 3,624,598,154,831,121
  5. Step 5: Solve for x
    x = 3,624,598,154,831,121/76,927,621.80
  6. Step 6: Final answer
    x = 47,116,992.18

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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.