Home / 397,966,029.40-549,233,986.83-239,247,536.45

Finding the Fourth Proportional to 397,966,029.40, 549,233,986.83 and 239,247,536.45

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Solution

The fourth proportional to 397,966,029.40, 549,233,986.83 and 239,247,536.45 is: 330,186,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,966,029.40 : 549,233,986.83 = 239,247,536.45 : x
  2. Step 2: Convert to fraction form
    397,966,029.40/549,233,986.83 = 239,247,536.45/x
  3. Step 3: Cross multiply
    397,966,029.40x = 549,233,986.83 × 239,247,536.45
  4. Step 4: Simplify right side
    397,966,029.40x = 131,402,878,285,062,336
  5. Step 5: Solve for x
    x = 131,402,878,285,062,336/397,966,029.40
  6. Step 6: Final answer
    x = 330,186,168.11

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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.