Home / 30,346,540.80-45,519,811.20-9,878,189.10

Finding the Fourth Proportional to 30,346,540.80, 45,519,811.20 and 9,878,189.10

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Solution

The fourth proportional to 30,346,540.80, 45,519,811.20 and 9,878,189.10 is: 14,817,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,346,540.80 : 45,519,811.20 = 9,878,189.10 : x
  2. Step 2: Convert to fraction form
    30,346,540.80/45,519,811.20 = 9,878,189.10/x
  3. Step 3: Cross multiply
    30,346,540.80x = 45,519,811.20 × 9,878,189.10
  4. Step 4: Simplify right side
    30,346,540.80x = 449,653,302,829,897.94
  5. Step 5: Solve for x
    x = 449,653,302,829,897.94/30,346,540.80
  6. Step 6: Final answer
    x = 14,817,283.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.