Home / 30,212,326.60-45,326,819.30-12,029,290.81

Finding the Fourth Proportional to 30,212,326.60, 45,326,819.30 and 12,029,290.81

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Solution

The fourth proportional to 30,212,326.60, 45,326,819.30 and 12,029,290.81 is: 18,047,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212,326.60 : 45,326,819.30 = 12,029,290.81 : x
  2. Step 2: Convert to fraction form
    30,212,326.60/45,326,819.30 = 12,029,290.81/x
  3. Step 3: Cross multiply
    30,212,326.60x = 45,326,819.30 × 12,029,290.81
  4. Step 4: Simplify right side
    30,212,326.60x = 545,249,490,678,557.12
  5. Step 5: Solve for x
    x = 545,249,490,678,557.12/30,212,326.60
  6. Step 6: Final answer
    x = 18,047,252.63

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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.