Home / 30,020,790.56-45,034,829.72-8,455,392.16

Finding the Fourth Proportional to 30,020,790.56, 45,034,829.72 and 8,455,392.16

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Solution

The fourth proportional to 30,020,790.56, 45,034,829.72 and 8,455,392.16 is: 12,684,114.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020,790.56 : 45,034,829.72 = 8,455,392.16 : x
  2. Step 2: Convert to fraction form
    30,020,790.56/45,034,829.72 = 8,455,392.16/x
  3. Step 3: Cross multiply
    30,020,790.56x = 45,034,829.72 × 8,455,392.16
  4. Step 4: Simplify right side
    30,020,790.56x = 380,787,146,141,423
  5. Step 5: Solve for x
    x = 380,787,146,141,423/30,020,790.56
  6. Step 6: Final answer
    x = 12,684,114.54

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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.