Home / 310,681,803,185.45-428,678,707,007.88-173,483,519,442.02

Finding the Fourth Proportional to 310,681,803,185.45, 428,678,707,007.88 and 173,483,519,442.02

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Solution

The fourth proportional to 310,681,803,185.45, 428,678,707,007.88 and 173,483,519,442.02 is: 239,372,534,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,681,803,185.45 : 428,678,707,007.88 = 173,483,519,442.02 : x
  2. Step 2: Convert to fraction form
    310,681,803,185.45/428,678,707,007.88 = 173,483,519,442.02/x
  3. Step 3: Cross multiply
    310,681,803,185.45x = 428,678,707,007.88 × 173,483,519,442.02
  4. Step 4: Simplify right side
    310,681,803,185.45x = 74,368,690,801,581,540,507,648
  5. Step 5: Solve for x
    x = 74,368,690,801,581,540,507,648/310,681,803,185.45
  6. Step 6: Final answer
    x = 239,372,534,982.97

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1.5x scale

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.