Home / 789,048,871.42-1,087,996,365.03-590,173,018.78

Finding the Fourth Proportional to 789,048,871.42, 1,087,996,365.03 and 590,173,018.78

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Solution

The fourth proportional to 789,048,871.42, 1,087,996,365.03 and 590,173,018.78 is: 813,772,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,048,871.42 : 1,087,996,365.03 = 590,173,018.78 : x
  2. Step 2: Convert to fraction form
    789,048,871.42/1,087,996,365.03 = 590,173,018.78/x
  3. Step 3: Cross multiply
    789,048,871.42x = 1,087,996,365.03 × 590,173,018.78
  4. Step 4: Simplify right side
    789,048,871.42x = 642,106,099,171,421,824
  5. Step 5: Solve for x
    x = 642,106,099,171,421,824/789,048,871.42
  6. Step 6: Final answer
    x = 813,772,280.06

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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.