Home / 86,757,019.62-130,130,945.99-28,457,018.06

Finding the Fourth Proportional to 86,757,019.62, 130,130,945.99 and 28,457,018.06

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Solution

The fourth proportional to 86,757,019.62, 130,130,945.99 and 28,457,018.06 is: 42,684,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,757,019.62 : 130,130,945.99 = 28,457,018.06 : x
  2. Step 2: Convert to fraction form
    86,757,019.62/130,130,945.99 = 28,457,018.06/x
  3. Step 3: Cross multiply
    86,757,019.62x = 130,130,945.99 × 28,457,018.06
  4. Step 4: Simplify right side
    86,757,019.62x = 3,703,138,679,409,374.50
  5. Step 5: Solve for x
    x = 3,703,138,679,409,374.50/86,757,019.62
  6. Step 6: Final answer
    x = 42,684,023.67

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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.