Home / 120,142,258.91-180,220,325.53-46,366,421.71

Finding the Fourth Proportional to 120,142,258.91, 180,220,325.53 and 46,366,421.71

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Solution

The fourth proportional to 120,142,258.91, 180,220,325.53 and 46,366,421.71 is: 69,552,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,142,258.91 : 180,220,325.53 = 46,366,421.71 : x
  2. Step 2: Convert to fraction form
    120,142,258.91/180,220,325.53 = 46,366,421.71/x
  3. Step 3: Cross multiply
    120,142,258.91x = 180,220,325.53 × 46,366,421.71
  4. Step 4: Simplify right side
    120,142,258.91x = 8,356,171,613,670,993
  5. Step 5: Solve for x
    x = 8,356,171,613,670,993/120,142,258.91
  6. Step 6: Final answer
    x = 69,552,309.81

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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.