Home / 30,319,368.60-45,479,052.90-12,114,561.90

Finding the Fourth Proportional to 30,319,368.60, 45,479,052.90 and 12,114,561.90

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Solution

The fourth proportional to 30,319,368.60, 45,479,052.90 and 12,114,561.90 is: 18,171,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319,368.60 : 45,479,052.90 = 12,114,561.90 : x
  2. Step 2: Convert to fraction form
    30,319,368.60/45,479,052.90 = 12,114,561.90/x
  3. Step 3: Cross multiply
    30,319,368.60x = 45,479,052.90 × 12,114,561.90
  4. Step 4: Simplify right side
    30,319,368.60x = 550,958,801,510,424.50
  5. Step 5: Solve for x
    x = 550,958,801,510,424.50/30,319,368.60
  6. Step 6: Final answer
    x = 18,171,842.85

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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.