Home / 438,465,868.32-605,005,985.60-250,208,208.48

Finding the Fourth Proportional to 438,465,868.32, 605,005,985.60 and 250,208,208.48

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Solution

The fourth proportional to 438,465,868.32, 605,005,985.60 and 250,208,208.48 is: 345,243,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,465,868.32 : 605,005,985.60 = 250,208,208.48 : x
  2. Step 2: Convert to fraction form
    438,465,868.32/605,005,985.60 = 250,208,208.48/x
  3. Step 3: Cross multiply
    438,465,868.32x = 605,005,985.60 × 250,208,208.48
  4. Step 4: Simplify right side
    438,465,868.32x = 151,377,463,776,652,672
  5. Step 5: Solve for x
    x = 151,377,463,776,652,672/438,465,868.32
  6. Step 6: Final answer
    x = 345,243,437.89

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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.