Home / 517,210,984.81-713,741,199.40-282,263,326.80

Finding the Fourth Proportional to 517,210,984.81, 713,741,199.40 and 282,263,326.80

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Solution

The fourth proportional to 517,210,984.81, 713,741,199.40 and 282,263,326.80 is: 389,517,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,210,984.81 : 713,741,199.40 = 282,263,326.80 : x
  2. Step 2: Convert to fraction form
    517,210,984.81/713,741,199.40 = 282,263,326.80/x
  3. Step 3: Cross multiply
    517,210,984.81x = 713,741,199.40 × 282,263,326.80
  4. Step 4: Simplify right side
    517,210,984.81x = 201,462,965,418,964,480
  5. Step 5: Solve for x
    x = 201,462,965,418,964,480/517,210,984.81
  6. Step 6: Final answer
    x = 389,517,955.60

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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.