Home / 557,017,683.62-768,702,833.12-306,130,968.37

Finding the Fourth Proportional to 557,017,683.62, 768,702,833.12 and 306,130,968.37

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Solution

The fourth proportional to 557,017,683.62, 768,702,833.12 and 306,130,968.37 is: 422,470,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,017,683.62 : 768,702,833.12 = 306,130,968.37 : x
  2. Step 2: Convert to fraction form
    557,017,683.62/768,702,833.12 = 306,130,968.37/x
  3. Step 3: Cross multiply
    557,017,683.62x = 768,702,833.12 × 306,130,968.37
  4. Step 4: Simplify right side
    557,017,683.62x = 235,323,742,686,413,952
  5. Step 5: Solve for x
    x = 235,323,742,686,413,952/557,017,683.62
  6. Step 6: Final answer
    x = 422,470,865.12

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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.