Home / 15,507,760.86-21,400,355.25-9,709,739.46

Finding the Fourth Proportional to 15,507,760.86, 21,400,355.25 and 9,709,739.46

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Solution

The fourth proportional to 15,507,760.86, 21,400,355.25 and 9,709,739.46 is: 13,399,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507,760.86 : 21,400,355.25 = 9,709,739.46 : x
  2. Step 2: Convert to fraction form
    15,507,760.86/21,400,355.25 = 9,709,739.46/x
  3. Step 3: Cross multiply
    15,507,760.86x = 21,400,355.25 × 9,709,739.46
  4. Step 4: Simplify right side
    15,507,760.86x = 207,791,873,828,943.19
  5. Step 5: Solve for x
    x = 207,791,873,828,943.19/15,507,760.86
  6. Step 6: Final answer
    x = 13,399,218.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.