Home / 726,014,538.40-1,089,021,807.60-180,756,072.40

Finding the Fourth Proportional to 726,014,538.40, 1,089,021,807.60 and 180,756,072.40

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Solution

The fourth proportional to 726,014,538.40, 1,089,021,807.60 and 180,756,072.40 is: 271,134,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,014,538.40 : 1,089,021,807.60 = 180,756,072.40 : x
  2. Step 2: Convert to fraction form
    726,014,538.40/1,089,021,807.60 = 180,756,072.40/x
  3. Step 3: Cross multiply
    726,014,538.40x = 1,089,021,807.60 × 180,756,072.40
  4. Step 4: Simplify right side
    726,014,538.40x = 196,847,304,699,724,448
  5. Step 5: Solve for x
    x = 196,847,304,699,724,448/726,014,538.40
  6. Step 6: Final answer
    x = 271,134,108.60

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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.