Home / 257,433,821.40-386,150,732.10-119,259,161.40

Finding the Fourth Proportional to 257,433,821.40, 386,150,732.10 and 119,259,161.40

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Solution

The fourth proportional to 257,433,821.40, 386,150,732.10 and 119,259,161.40 is: 178,888,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,433,821.40 : 386,150,732.10 = 119,259,161.40 : x
  2. Step 2: Convert to fraction form
    257,433,821.40/386,150,732.10 = 119,259,161.40/x
  3. Step 3: Cross multiply
    257,433,821.40x = 386,150,732.10 × 119,259,161.40
  4. Step 4: Simplify right side
    257,433,821.40x = 46,052,012,484,242,064
  5. Step 5: Solve for x
    x = 46,052,012,484,242,064/257,433,821.40
  6. Step 6: Final answer
    x = 178,888,742.10

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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.