Home / 393,779,615.16-543,426,826.14-217,578,964.44

Finding the Fourth Proportional to 393,779,615.16, 543,426,826.14 and 217,578,964.44

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Solution

The fourth proportional to 393,779,615.16, 543,426,826.14 and 217,578,964.44 is: 300,265,025.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,779,615.16 : 543,426,826.14 = 217,578,964.44 : x
  2. Step 2: Convert to fraction form
    393,779,615.16/543,426,826.14 = 217,578,964.44/x
  3. Step 3: Cross multiply
    393,779,615.16x = 543,426,826.14 × 217,578,964.44
  4. Step 4: Simplify right side
    393,779,615.16x = 118,238,246,080,457,120
  5. Step 5: Solve for x
    x = 118,238,246,080,457,120/393,779,615.16
  6. Step 6: Final answer
    x = 300,265,025.23

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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.