Home / 30,579,018-42,189,543.18-17,346,015.60

Finding the Fourth Proportional to 30,579,018, 42,189,543.18 and 17,346,015.60

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Solution

The fourth proportional to 30,579,018, 42,189,543.18 and 17,346,015.60 is: 23,932,111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,018 : 42,189,543.18 = 17,346,015.60 : x
  2. Step 2: Convert to fraction form
    30,579,018/42,189,543.18 = 17,346,015.60/x
  3. Step 3: Cross multiply
    30,579,018x = 42,189,543.18 × 17,346,015.60
  4. Step 4: Simplify right side
    30,579,018x = 731,820,474,157,153.62
  5. Step 5: Solve for x
    x = 731,820,474,157,153.62/30,579,018
  6. Step 6: Final answer
    x = 23,932,111.69

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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.