Home / 1,124,299,642,805.40-1,551,533,507,072-643,123,395,467.36

Finding the Fourth Proportional to 1,124,299,642,805.40, 1,551,533,507,072 and 643,123,395,467.36

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Solution

The fourth proportional to 1,124,299,642,805.40, 1,551,533,507,072 and 643,123,395,467.36 is: 887,510,285,745.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,299,642,805.40 : 1,551,533,507,072 = 643,123,395,467.36 : x
  2. Step 2: Convert to fraction form
    1,124,299,642,805.40/1,551,533,507,072 = 643,123,395,467.36/x
  3. Step 3: Cross multiply
    1,124,299,642,805.40x = 1,551,533,507,072 × 643,123,395,467.36
  4. Step 4: Simplify right side
    1,124,299,642,805.40x = 997,827,497,249,525,880,324,096
  5. Step 5: Solve for x
    x = 997,827,497,249,525,880,324,096/1,124,299,642,805.40
  6. Step 6: Final answer
    x = 887,510,285,745.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.