Home / 856,147,921.96-1,181,477,638.74-465,010,145.32

Finding the Fourth Proportional to 856,147,921.96, 1,181,477,638.74 and 465,010,145.32

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Solution

The fourth proportional to 856,147,921.96, 1,181,477,638.74 and 465,010,145.32 is: 641,710,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,147,921.96 : 1,181,477,638.74 = 465,010,145.32 : x
  2. Step 2: Convert to fraction form
    856,147,921.96/1,181,477,638.74 = 465,010,145.32/x
  3. Step 3: Cross multiply
    856,147,921.96x = 1,181,477,638.74 × 465,010,145.32
  4. Step 4: Simplify right side
    856,147,921.96x = 549,399,088,482,817,856
  5. Step 5: Solve for x
    x = 549,399,088,482,817,856/856,147,921.96
  6. Step 6: Final answer
    x = 641,710,473.61

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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.