Home / 713,628,987.54-1,071,494,277.87-399,111,228.16

Finding the Fourth Proportional to 713,628,987.54, 1,071,494,277.87 and 399,111,228.16

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Solution

The fourth proportional to 713,628,987.54, 1,071,494,277.87 and 399,111,228.16 is: 599,254,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,628,987.54 : 1,071,494,277.87 = 399,111,228.16 : x
  2. Step 2: Convert to fraction form
    713,628,987.54/1,071,494,277.87 = 399,111,228.16/x
  3. Step 3: Cross multiply
    713,628,987.54x = 1,071,494,277.87 × 399,111,228.16
  4. Step 4: Simplify right side
    713,628,987.54x = 427,645,397,205,112,512
  5. Step 5: Solve for x
    x = 427,645,397,205,112,512/713,628,987.54
  6. Step 6: Final answer
    x = 599,254,521.15

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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.