Home / 25,758,415.80-38,642,289.30-12,946,678.20

Finding the Fourth Proportional to 25,758,415.80, 38,642,289.30 and 12,946,678.20

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Solution

The fourth proportional to 25,758,415.80, 38,642,289.30 and 12,946,678.20 is: 19,422,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,758,415.80 : 38,642,289.30 = 12,946,678.20 : x
  2. Step 2: Convert to fraction form
    25,758,415.80/38,642,289.30 = 12,946,678.20/x
  3. Step 3: Cross multiply
    25,758,415.80x = 38,642,289.30 × 12,946,678.20
  4. Step 4: Simplify right side
    25,758,415.80x = 500,289,284,478,403.19
  5. Step 5: Solve for x
    x = 500,289,284,478,403.19/25,758,415.80
  6. Step 6: Final answer
    x = 19,422,362.32

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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.