Home / 69,872,720.10-104,809,080.15-18,759,905.70

Finding the Fourth Proportional to 69,872,720.10, 104,809,080.15 and 18,759,905.70

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Solution

The fourth proportional to 69,872,720.10, 104,809,080.15 and 18,759,905.70 is: 28,139,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,872,720.10 : 104,809,080.15 = 18,759,905.70 : x
  2. Step 2: Convert to fraction form
    69,872,720.10/104,809,080.15 = 18,759,905.70/x
  3. Step 3: Cross multiply
    69,872,720.10x = 104,809,080.15 × 18,759,905.70
  4. Step 4: Simplify right side
    69,872,720.10x = 1,966,208,460,117,742
  5. Step 5: Solve for x
    x = 1,966,208,460,117,742/69,872,720.10
  6. Step 6: Final answer
    x = 28,139,858.55

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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.