Home / 115,453,910.40-172,939,420.80-54,095,438.40

Finding the Fourth Proportional to 115,453,910.40, 172,939,420.80 and 54,095,438.40

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Solution

The fourth proportional to 115,453,910.40, 172,939,420.80 and 54,095,438.40 is: 81,030,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,453,910.40 : 172,939,420.80 = 54,095,438.40 : x
  2. Step 2: Convert to fraction form
    115,453,910.40/172,939,420.80 = 54,095,438.40/x
  3. Step 3: Cross multiply
    115,453,910.40x = 172,939,420.80 × 54,095,438.40
  4. Step 4: Simplify right side
    115,453,910.40x = 9,355,233,784,818,080
  5. Step 5: Solve for x
    x = 9,355,233,784,818,080/115,453,910.40
  6. Step 6: Final answer
    x = 81,030,029.67

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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.