Home / 74,672,017.60-112,008,026.40-20,819,329.60

Finding the Fourth Proportional to 74,672,017.60, 112,008,026.40 and 20,819,329.60

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Solution

The fourth proportional to 74,672,017.60, 112,008,026.40 and 20,819,329.60 is: 31,228,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,672,017.60 : 112,008,026.40 = 20,819,329.60 : x
  2. Step 2: Convert to fraction form
    74,672,017.60/112,008,026.40 = 20,819,329.60/x
  3. Step 3: Cross multiply
    74,672,017.60x = 112,008,026.40 × 20,819,329.60
  4. Step 4: Simplify right side
    74,672,017.60x = 2,331,932,019,467,101.50
  5. Step 5: Solve for x
    x = 2,331,932,019,467,101.50/74,672,017.60
  6. Step 6: Final answer
    x = 31,228,994.40

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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.