Home / 9,840,643.88-13,578,406.74-5,709,728.02

Finding the Fourth Proportional to 9,840,643.88, 13,578,406.74 and 5,709,728.02

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Solution

The fourth proportional to 9,840,643.88, 13,578,406.74 and 5,709,728.02 is: 7,878,448.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840,643.88 : 13,578,406.74 = 5,709,728.02 : x
  2. Step 2: Convert to fraction form
    9,840,643.88/13,578,406.74 = 5,709,728.02/x
  3. Step 3: Cross multiply
    9,840,643.88x = 13,578,406.74 × 5,709,728.02
  4. Step 4: Simplify right side
    9,840,643.88x = 77,529,009,413,820.47
  5. Step 5: Solve for x
    x = 77,529,009,413,820.47/9,840,643.88
  6. Step 6: Final answer
    x = 7,878,448.84

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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.