Home / 499,928,309.86-749,928,386.40-172,399,111.24

Finding the Fourth Proportional to 499,928,309.86, 749,928,386.40 and 172,399,111.24

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Solution

The fourth proportional to 499,928,309.86, 749,928,386.40 and 172,399,111.24 is: 258,611,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,928,309.86 : 749,928,386.40 = 172,399,111.24 : x
  2. Step 2: Convert to fraction form
    499,928,309.86/749,928,386.40 = 172,399,111.24/x
  3. Step 3: Cross multiply
    499,928,309.86x = 749,928,386.40 × 172,399,111.24
  4. Step 4: Simplify right side
    499,928,309.86x = 129,286,987,309,007,312
  5. Step 5: Solve for x
    x = 129,286,987,309,007,312/499,928,309.86
  6. Step 6: Final answer
    x = 258,611,054.34

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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.