Home / 505,779,064.25-697,990,443.30-282,770,141.45

Finding the Fourth Proportional to 505,779,064.25, 697,990,443.30 and 282,770,141.45

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Solution

The fourth proportional to 505,779,064.25, 697,990,443.30 and 282,770,141.45 is: 390,231,368.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,779,064.25 : 697,990,443.30 = 282,770,141.45 : x
  2. Step 2: Convert to fraction form
    505,779,064.25/697,990,443.30 = 282,770,141.45/x
  3. Step 3: Cross multiply
    505,779,064.25x = 697,990,443.30 × 282,770,141.45
  4. Step 4: Simplify right side
    505,779,064.25x = 197,370,856,379,199,232
  5. Step 5: Solve for x
    x = 197,370,856,379,199,232/505,779,064.25
  6. Step 6: Final answer
    x = 390,231,368.46

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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.