Home / 85,855,063.36-128,786,582.40-27,565,120

Finding the Fourth Proportional to 85,855,063.36, 128,786,582.40 and 27,565,120

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Solution

The fourth proportional to 85,855,063.36, 128,786,582.40 and 27,565,120 is: 41,348,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,855,063.36 : 128,786,582.40 = 27,565,120 : x
  2. Step 2: Convert to fraction form
    85,855,063.36/128,786,582.40 = 27,565,120/x
  3. Step 3: Cross multiply
    85,855,063.36x = 128,786,582.40 × 27,565,120
  4. Step 4: Simplify right side
    85,855,063.36x = 3,550,017,598,245,888
  5. Step 5: Solve for x
    x = 3,550,017,598,245,888/85,855,063.36
  6. Step 6: Final answer
    x = 41,348,960.20

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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.