Home / 1,020,764,807.20-1,531,147,210.80-475,561,453.60

Finding the Fourth Proportional to 1,020,764,807.20, 1,531,147,210.80 and 475,561,453.60

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Solution

The fourth proportional to 1,020,764,807.20, 1,531,147,210.80 and 475,561,453.60 is: 713,342,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,764,807.20 : 1,531,147,210.80 = 475,561,453.60 : x
  2. Step 2: Convert to fraction form
    1,020,764,807.20/1,531,147,210.80 = 475,561,453.60/x
  3. Step 3: Cross multiply
    1,020,764,807.20x = 1,531,147,210.80 × 475,561,453.60
  4. Step 4: Simplify right side
    1,020,764,807.20x = 728,154,593,243,633,664
  5. Step 5: Solve for x
    x = 728,154,593,243,633,664/1,020,764,807.20
  6. Step 6: Final answer
    x = 713,342,180.40

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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.