Home / 30,538,193.36-42,142,843.08-16,788,041.68

Finding the Fourth Proportional to 30,538,193.36, 42,142,843.08 and 16,788,041.68

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Solution

The fourth proportional to 30,538,193.36, 42,142,843.08 and 16,788,041.68 is: 23,167,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,538,193.36 : 42,142,843.08 = 16,788,041.68 : x
  2. Step 2: Convert to fraction form
    30,538,193.36/42,142,843.08 = 16,788,041.68/x
  3. Step 3: Cross multiply
    30,538,193.36x = 42,142,843.08 × 16,788,041.68
  4. Step 4: Simplify right side
    30,538,193.36x = 707,495,806,140,739.50
  5. Step 5: Solve for x
    x = 707,495,806,140,739.50/30,538,193.36
  6. Step 6: Final answer
    x = 23,167,572.42

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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.