Home / 120,670,671.40-181,006,007.10-111,222,831.40

Finding the Fourth Proportional to 120,670,671.40, 181,006,007.10 and 111,222,831.40

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Solution

The fourth proportional to 120,670,671.40, 181,006,007.10 and 111,222,831.40 is: 166,834,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670,671.40 : 181,006,007.10 = 111,222,831.40 : x
  2. Step 2: Convert to fraction form
    120,670,671.40/181,006,007.10 = 111,222,831.40/x
  3. Step 3: Cross multiply
    120,670,671.40x = 181,006,007.10 × 111,222,831.40
  4. Step 4: Simplify right side
    120,670,671.40x = 20,132,000,610,070,504
  5. Step 5: Solve for x
    x = 20,132,000,610,070,504/120,670,671.40
  6. Step 6: Final answer
    x = 166,834,247.10

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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.