Home / 86,998,779.66-130,470,257.98-28,693,349.63

Finding the Fourth Proportional to 86,998,779.66, 130,470,257.98 and 28,693,349.63

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Solution

The fourth proportional to 86,998,779.66, 130,470,257.98 and 28,693,349.63 is: 43,030,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,998,779.66 : 130,470,257.98 = 28,693,349.63 : x
  2. Step 2: Convert to fraction form
    86,998,779.66/130,470,257.98 = 28,693,349.63/x
  3. Step 3: Cross multiply
    86,998,779.66x = 130,470,257.98 × 28,693,349.63
  4. Step 4: Simplify right side
    86,998,779.66x = 3,743,628,728,981,855
  5. Step 5: Solve for x
    x = 3,743,628,728,981,855/86,998,779.66
  6. Step 6: Final answer
    x = 43,030,818.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.