Home / 9,839,178.72-13,578,084-5,428,803.24

Finding the Fourth Proportional to 9,839,178.72, 13,578,084 and 5,428,803.24

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Solution

The fourth proportional to 9,839,178.72, 13,578,084 and 5,428,803.24 is: 7,491,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,839,178.72 : 13,578,084 = 5,428,803.24 : x
  2. Step 2: Convert to fraction form
    9,839,178.72/13,578,084 = 5,428,803.24/x
  3. Step 3: Cross multiply
    9,839,178.72x = 13,578,084 × 5,428,803.24
  4. Step 4: Simplify right side
    9,839,178.72x = 73,712,746,412,192.16
  5. Step 5: Solve for x
    x = 73,712,746,412,192.16/9,839,178.72
  6. Step 6: Final answer
    x = 7,491,758.05

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1.5x scale

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.