Home / 30,479,999.86-42,051,541.14-18,080,595.60

Finding the Fourth Proportional to 30,479,999.86, 42,051,541.14 and 18,080,595.60

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Solution

The fourth proportional to 30,479,999.86, 42,051,541.14 and 18,080,595.60 is: 24,944,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479,999.86 : 42,051,541.14 = 18,080,595.60 : x
  2. Step 2: Convert to fraction form
    30,479,999.86/42,051,541.14 = 18,080,595.60/x
  3. Step 3: Cross multiply
    30,479,999.86x = 42,051,541.14 × 18,080,595.60
  4. Step 4: Simplify right side
    30,479,999.86x = 760,316,909,709,103
  5. Step 5: Solve for x
    x = 760,316,909,709,103/30,479,999.86
  6. Step 6: Final answer
    x = 24,944,780.62

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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.