Home / 513,576,020.98-708,736,268.10-278,626,674.16

Finding the Fourth Proportional to 513,576,020.98, 708,736,268.10 and 278,626,674.16

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Solution

The fourth proportional to 513,576,020.98, 708,736,268.10 and 278,626,674.16 is: 384,505,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,576,020.98 : 708,736,268.10 = 278,626,674.16 : x
  2. Step 2: Convert to fraction form
    513,576,020.98/708,736,268.10 = 278,626,674.16/x
  3. Step 3: Cross multiply
    513,576,020.98x = 708,736,268.10 × 278,626,674.16
  4. Step 4: Simplify right side
    513,576,020.98x = 197,472,829,237,273,120
  5. Step 5: Solve for x
    x = 197,472,829,237,273,120/513,576,020.98
  6. Step 6: Final answer
    x = 384,505,547.71

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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.