Home / 190,780,299.80-286,264,928.10-108,962,005.40

Finding the Fourth Proportional to 190,780,299.80, 286,264,928.10 and 108,962,005.40

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Solution

The fourth proportional to 190,780,299.80, 286,264,928.10 and 108,962,005.40 is: 163,496,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,780,299.80 : 286,264,928.10 = 108,962,005.40 : x
  2. Step 2: Convert to fraction form
    190,780,299.80/286,264,928.10 = 108,962,005.40/x
  3. Step 3: Cross multiply
    190,780,299.80x = 286,264,928.10 × 108,962,005.40
  4. Step 4: Simplify right side
    190,780,299.80x = 31,192,000,641,462,816
  5. Step 5: Solve for x
    x = 31,192,000,641,462,816/190,780,299.80
  6. Step 6: Final answer
    x = 163,496,968.37

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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.