Home / 245,014,913.40-367,416,081.90-81,189,367.80

Finding the Fourth Proportional to 245,014,913.40, 367,416,081.90 and 81,189,367.80

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Solution

The fourth proportional to 245,014,913.40, 367,416,081.90 and 81,189,367.80 is: 121,748,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,014,913.40 : 367,416,081.90 = 81,189,367.80 : x
  2. Step 2: Convert to fraction form
    245,014,913.40/367,416,081.90 = 81,189,367.80/x
  3. Step 3: Cross multiply
    245,014,913.40x = 367,416,081.90 × 81,189,367.80
  4. Step 4: Simplify right side
    245,014,913.40x = 29,830,279,409,014,020
  5. Step 5: Solve for x
    x = 29,830,279,409,014,020/245,014,913.40
  6. Step 6: Final answer
    x = 121,748,831.51

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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.