Home / 12,738,876.60-19,089,419.21-9,356,549.88

Finding the Fourth Proportional to 12,738,876.60, 19,089,419.21 and 9,356,549.88

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Solution

The fourth proportional to 12,738,876.60, 19,089,419.21 and 9,356,549.88 is: 14,020,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738,876.60 : 19,089,419.21 = 9,356,549.88 : x
  2. Step 2: Convert to fraction form
    12,738,876.60/19,089,419.21 = 9,356,549.88/x
  3. Step 3: Cross multiply
    12,738,876.60x = 19,089,419.21 × 9,356,549.88
  4. Step 4: Simplify right side
    12,738,876.60x = 178,611,103,018,595.22
  5. Step 5: Solve for x
    x = 178,611,103,018,595.22/12,738,876.60
  6. Step 6: Final answer
    x = 14,020,946.17

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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.