Home / 1,175,388,556.34-1,762,538,017.25-438,260,541.45

Finding the Fourth Proportional to 1,175,388,556.34, 1,762,538,017.25 and 438,260,541.45

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Solution

The fourth proportional to 1,175,388,556.34, 1,762,538,017.25 and 438,260,541.45 is: 657,187,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,388,556.34 : 1,762,538,017.25 = 438,260,541.45 : x
  2. Step 2: Convert to fraction form
    1,175,388,556.34/1,762,538,017.25 = 438,260,541.45/x
  3. Step 3: Cross multiply
    1,175,388,556.34x = 1,762,538,017.25 × 438,260,541.45
  4. Step 4: Simplify right side
    1,175,388,556.34x = 772,450,865,764,003,072
  5. Step 5: Solve for x
    x = 772,450,865,764,003,072/1,175,388,556.34
  6. Step 6: Final answer
    x = 657,187,669.22

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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.