Home / 20,630,779.65-30,946,169.48-9,869,099.40

Finding the Fourth Proportional to 20,630,779.65, 30,946,169.48 and 9,869,099.40

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Solution

The fourth proportional to 20,630,779.65, 30,946,169.48 and 9,869,099.40 is: 14,803,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,779.65 : 30,946,169.48 = 9,869,099.40 : x
  2. Step 2: Convert to fraction form
    20,630,779.65/30,946,169.48 = 9,869,099.40/x
  3. Step 3: Cross multiply
    20,630,779.65x = 30,946,169.48 × 9,869,099.40
  4. Step 4: Simplify right side
    20,630,779.65x = 305,410,822,598,020.81
  5. Step 5: Solve for x
    x = 305,410,822,598,020.81/20,630,779.65
  6. Step 6: Final answer
    x = 14,803,649.10

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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.