Home / 8,780,678.19-13,153,975.11-6,470,976.60

Finding the Fourth Proportional to 8,780,678.19, 13,153,975.11 and 6,470,976.60

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Solution

The fourth proportional to 8,780,678.19, 13,153,975.11 and 6,470,976.60 is: 9,693,905.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780,678.19 : 13,153,975.11 = 6,470,976.60 : x
  2. Step 2: Convert to fraction form
    8,780,678.19/13,153,975.11 = 6,470,976.60/x
  3. Step 3: Cross multiply
    8,780,678.19x = 13,153,975.11 × 6,470,976.60
  4. Step 4: Simplify right side
    8,780,678.19x = 85,119,065,133,792.42
  5. Step 5: Solve for x
    x = 85,119,065,133,792.42/8,780,678.19
  6. Step 6: Final answer
    x = 9,693,905.56

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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.