Home / 279,989,439.01-386,327,742.96-160,889,018.45

Finding the Fourth Proportional to 279,989,439.01, 386,327,742.96 and 160,889,018.45

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Solution

The fourth proportional to 279,989,439.01, 386,327,742.96 and 160,889,018.45 is: 221,993,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,989,439.01 : 386,327,742.96 = 160,889,018.45 : x
  2. Step 2: Convert to fraction form
    279,989,439.01/386,327,742.96 = 160,889,018.45/x
  3. Step 3: Cross multiply
    279,989,439.01x = 386,327,742.96 × 160,889,018.45
  4. Step 4: Simplify right side
    279,989,439.01x = 62,155,891,362,604,184
  5. Step 5: Solve for x
    x = 62,155,891,362,604,184/279,989,439.01
  6. Step 6: Final answer
    x = 221,993,699.42

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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.