Home / 14,089,931.80-21,106,904.10-7,688,728.60

Finding the Fourth Proportional to 14,089,931.80, 21,106,904.10 and 7,688,728.60

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Solution

The fourth proportional to 14,089,931.80, 21,106,904.10 and 7,688,728.60 is: 11,517,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089,931.80 : 21,106,904.10 = 7,688,728.60 : x
  2. Step 2: Convert to fraction form
    14,089,931.80/21,106,904.10 = 7,688,728.60/x
  3. Step 3: Cross multiply
    14,089,931.80x = 21,106,904.10 × 7,688,728.60
  4. Step 4: Simplify right side
    14,089,931.80x = 162,285,257,211,127.25
  5. Step 5: Solve for x
    x = 162,285,257,211,127.25/14,089,931.80
  6. Step 6: Final answer
    x = 11,517,817.08

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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.