Home / 30,999,978.52-42,779,183.00-16,870,564.39

Finding the Fourth Proportional to 30,999,978.52, 42,779,183.00 and 16,870,564.39

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Solution

The fourth proportional to 30,999,978.52, 42,779,183.00 and 16,870,564.39 is: 23,280,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999,978.52 : 42,779,183.00 = 16,870,564.39 : x
  2. Step 2: Convert to fraction form
    30,999,978.52/42,779,183.00 = 16,870,564.39/x
  3. Step 3: Cross multiply
    30,999,978.52x = 42,779,183.00 × 16,870,564.39
  4. Step 4: Simplify right side
    30,999,978.52x = 721,708,961,242,003.62
  5. Step 5: Solve for x
    x = 721,708,961,242,003.62/30,999,978.52
  6. Step 6: Final answer
    x = 23,280,950.37

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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.