Home / 75,328,014.40-112,992,021.60-20,740,494.40

Finding the Fourth Proportional to 75,328,014.40, 112,992,021.60 and 20,740,494.40

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Solution

The fourth proportional to 75,328,014.40, 112,992,021.60 and 20,740,494.40 is: 31,110,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,328,014.40 : 112,992,021.60 = 20,740,494.40 : x
  2. Step 2: Convert to fraction form
    75,328,014.40/112,992,021.60 = 20,740,494.40/x
  3. Step 3: Cross multiply
    75,328,014.40x = 112,992,021.60 × 20,740,494.40
  4. Step 4: Simplify right side
    75,328,014.40x = 2,343,510,391,239,478.50
  5. Step 5: Solve for x
    x = 2,343,510,391,239,478.50/75,328,014.40
  6. Step 6: Final answer
    x = 31,110,741.60

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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.