Home / 1,179,075,712.86-1,767,949,922.91-391,707,840.03

Finding the Fourth Proportional to 1,179,075,712.86, 1,767,949,922.91 and 391,707,840.03

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Solution

The fourth proportional to 1,179,075,712.86, 1,767,949,922.91 and 391,707,840.03 is: 587,341,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,075,712.86 : 1,767,949,922.91 = 391,707,840.03 : x
  2. Step 2: Convert to fraction form
    1,179,075,712.86/1,767,949,922.91 = 391,707,840.03/x
  3. Step 3: Cross multiply
    1,179,075,712.86x = 1,767,949,922.91 × 391,707,840.03
  4. Step 4: Simplify right side
    1,179,075,712.86x = 692,519,845,584,281,088
  5. Step 5: Solve for x
    x = 692,519,845,584,281,088/1,179,075,712.86
  6. Step 6: Final answer
    x = 587,341,286.09

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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.