Home / 281,797,621.80-388,883,535.06-158,035,641.72

Finding the Fourth Proportional to 281,797,621.80, 388,883,535.06 and 158,035,641.72

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Solution

The fourth proportional to 281,797,621.80, 388,883,535.06 and 158,035,641.72 is: 218,090,765.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,797,621.80 : 388,883,535.06 = 158,035,641.72 : x
  2. Step 2: Convert to fraction form
    281,797,621.80/388,883,535.06 = 158,035,641.72/x
  3. Step 3: Cross multiply
    281,797,621.80x = 388,883,535.06 × 158,035,641.72
  4. Step 4: Simplify right side
    281,797,621.80x = 61,457,459,017,549,216
  5. Step 5: Solve for x
    x = 61,457,459,017,549,216/281,797,621.80
  6. Step 6: Final answer
    x = 218,090,765.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.