Home / 66,464,258.40-99,705,718.80-21,021,314.40

Finding the Fourth Proportional to 66,464,258.40, 99,705,718.80 and 21,021,314.40

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Solution

The fourth proportional to 66,464,258.40, 99,705,718.80 and 21,021,314.40 is: 31,534,922.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464,258.40 : 99,705,718.80 = 21,021,314.40 : x
  2. Step 2: Convert to fraction form
    66,464,258.40/99,705,718.80 = 21,021,314.40/x
  3. Step 3: Cross multiply
    66,464,258.40x = 99,705,718.80 × 21,021,314.40
  4. Step 4: Simplify right side
    66,464,258.40x = 2,095,945,262,372,790.50
  5. Step 5: Solve for x
    x = 2,095,945,262,372,790.50/66,464,258.40
  6. Step 6: Final answer
    x = 31,534,922.87

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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.