Home / 1,984,998,212.80-2,978,135,048.40-1,330,688,053.60

Finding the Fourth Proportional to 1,984,998,212.80, 2,978,135,048.40 and 1,330,688,053.60

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Solution

The fourth proportional to 1,984,998,212.80, 2,978,135,048.40 and 1,330,688,053.60 is: 1,996,459,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,998,212.80 : 2,978,135,048.40 = 1,330,688,053.60 : x
  2. Step 2: Convert to fraction form
    1,984,998,212.80/2,978,135,048.40 = 1,330,688,053.60/x
  3. Step 3: Cross multiply
    1,984,998,212.80x = 2,978,135,048.40 × 1,330,688,053.60
  4. Step 4: Simplify right side
    1,984,998,212.80x = 3,962,968,730,913,337,856
  5. Step 5: Solve for x
    x = 3,962,968,730,913,337,856/1,984,998,212.80
  6. Step 6: Final answer
    x = 1,996,459,596.47

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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.