Home / 30,020,779.06-45,034,812.51-8,455,380.74

Finding the Fourth Proportional to 30,020,779.06, 45,034,812.51 and 8,455,380.74

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Solution

The fourth proportional to 30,020,779.06, 45,034,812.51 and 8,455,380.74 is: 12,684,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020,779.06 : 45,034,812.51 = 8,455,380.74 : x
  2. Step 2: Convert to fraction form
    30,020,779.06/45,034,812.51 = 8,455,380.74/x
  3. Step 3: Cross multiply
    30,020,779.06x = 45,034,812.51 × 8,455,380.74
  4. Step 4: Simplify right side
    30,020,779.06x = 380,786,486,238,563.88
  5. Step 5: Solve for x
    x = 380,786,486,238,563.88/30,020,779.06
  6. Step 6: Final answer
    x = 12,684,097.42

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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.