Home / 220,089,715.20-330,124,075.20-74,508,998.40

Finding the Fourth Proportional to 220,089,715.20, 330,124,075.20 and 74,508,998.40

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Solution

The fourth proportional to 220,089,715.20, 330,124,075.20 and 74,508,998.40 is: 111,759,943.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,089,715.20 : 330,124,075.20 = 74,508,998.40 : x
  2. Step 2: Convert to fraction form
    220,089,715.20/330,124,075.20 = 74,508,998.40/x
  3. Step 3: Cross multiply
    220,089,715.20x = 330,124,075.20 × 74,508,998.40
  4. Step 4: Simplify right side
    220,089,715.20x = 24,597,214,190,878,280
  5. Step 5: Solve for x
    x = 24,597,214,190,878,280/220,089,715.20
  6. Step 6: Final answer
    x = 111,759,943.75

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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.