Home / 74,905,417.20-112,358,125.80-21,052,729.20

Finding the Fourth Proportional to 74,905,417.20, 112,358,125.80 and 21,052,729.20

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Solution

The fourth proportional to 74,905,417.20, 112,358,125.80 and 21,052,729.20 is: 31,579,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,905,417.20 : 112,358,125.80 = 21,052,729.20 : x
  2. Step 2: Convert to fraction form
    74,905,417.20/112,358,125.80 = 21,052,729.20/x
  3. Step 3: Cross multiply
    74,905,417.20x = 112,358,125.80 × 21,052,729.20
  4. Step 4: Simplify right side
    74,905,417.20x = 2,365,445,195,886,933
  5. Step 5: Solve for x
    x = 2,365,445,195,886,933/74,905,417.20
  6. Step 6: Final answer
    x = 31,579,093.80

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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.