Home / 1,003,142,867.87-1,504,118,206.69-381,403,611.15

Finding the Fourth Proportional to 1,003,142,867.87, 1,504,118,206.69 and 381,403,611.15

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Solution

The fourth proportional to 1,003,142,867.87, 1,504,118,206.69 and 381,403,611.15 is: 571,878,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,142,867.87 : 1,504,118,206.69 = 381,403,611.15 : x
  2. Step 2: Convert to fraction form
    1,003,142,867.87/1,504,118,206.69 = 381,403,611.15/x
  3. Step 3: Cross multiply
    1,003,142,867.87x = 1,504,118,206.69 × 381,403,611.15
  4. Step 4: Simplify right side
    1,003,142,867.87x = 573,676,115,620,507,520
  5. Step 5: Solve for x
    x = 573,676,115,620,507,520/1,003,142,867.87
  6. Step 6: Final answer
    x = 571,878,776.19

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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.