Home / 121,737,831.78-167,980,271.24-74,028,747.54

Finding the Fourth Proportional to 121,737,831.78, 167,980,271.24 and 74,028,747.54

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Solution

The fourth proportional to 121,737,831.78, 167,980,271.24 and 74,028,747.54 is: 102,148,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,737,831.78 : 167,980,271.24 = 74,028,747.54 : x
  2. Step 2: Convert to fraction form
    121,737,831.78/167,980,271.24 = 74,028,747.54/x
  3. Step 3: Cross multiply
    121,737,831.78x = 167,980,271.24 × 74,028,747.54
  4. Step 4: Simplify right side
    121,737,831.78x = 12,435,369,091,326,684
  5. Step 5: Solve for x
    x = 12,435,369,091,326,684/121,737,831.78
  6. Step 6: Final answer
    x = 102,148,764.35

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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.