Home / 12,658,056.55-18,999,558.96-9,018,828.34

Finding the Fourth Proportional to 12,658,056.55, 18,999,558.96 and 9,018,828.34

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Solution

The fourth proportional to 12,658,056.55, 18,999,558.96 and 9,018,828.34 is: 13,537,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,056.55 : 18,999,558.96 = 9,018,828.34 : x
  2. Step 2: Convert to fraction form
    12,658,056.55/18,999,558.96 = 9,018,828.34/x
  3. Step 3: Cross multiply
    12,658,056.55x = 18,999,558.96 × 9,018,828.34
  4. Step 4: Simplify right side
    12,658,056.55x = 171,353,760,795,948.94
  5. Step 5: Solve for x
    x = 171,353,760,795,948.94/12,658,056.55
  6. Step 6: Final answer
    x = 13,537,130.29

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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.