Home / 65,664,039.80-98,496,059.70-20,219,929.40

Finding the Fourth Proportional to 65,664,039.80, 98,496,059.70 and 20,219,929.40

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Solution

The fourth proportional to 65,664,039.80, 98,496,059.70 and 20,219,929.40 is: 30,329,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664,039.80 : 98,496,059.70 = 20,219,929.40 : x
  2. Step 2: Convert to fraction form
    65,664,039.80/98,496,059.70 = 20,219,929.40/x
  3. Step 3: Cross multiply
    65,664,039.80x = 98,496,059.70 × 20,219,929.40
  4. Step 4: Simplify right side
    65,664,039.80x = 1,991,583,373,312,185
  5. Step 5: Solve for x
    x = 1,991,583,373,312,185/65,664,039.80
  6. Step 6: Final answer
    x = 30,329,894.10

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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.