Home / 19,120,728-28,699,987.80-10,145,280

Finding the Fourth Proportional to 19,120,728, 28,699,987.80 and 10,145,280

Calculator

Solution

The fourth proportional to 19,120,728, 28,699,987.80 and 10,145,280 is: 15,227,945.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120,728 : 28,699,987.80 = 10,145,280 : x
  2. Step 2: Convert to fraction form
    19,120,728/28,699,987.80 = 10,145,280/x
  3. Step 3: Cross multiply
    19,120,728x = 28,699,987.80 × 10,145,280
  4. Step 4: Simplify right side
    19,120,728x = 291,169,412,227,584
  5. Step 5: Solve for x
    x = 291,169,412,227,584/19,120,728
  6. Step 6: Final answer
    x = 15,227,945.94

Related Problems

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.