Home / 28,355,861.70-42,533,792.55-13,211,324.10

Finding the Fourth Proportional to 28,355,861.70, 42,533,792.55 and 13,211,324.10

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Solution

The fourth proportional to 28,355,861.70, 42,533,792.55 and 13,211,324.10 is: 19,816,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355,861.70 : 42,533,792.55 = 13,211,324.10 : x
  2. Step 2: Convert to fraction form
    28,355,861.70/42,533,792.55 = 13,211,324.10/x
  3. Step 3: Cross multiply
    28,355,861.70x = 42,533,792.55 × 13,211,324.10
  4. Step 4: Simplify right side
    28,355,861.70x = 561,927,718,580,215.38
  5. Step 5: Solve for x
    x = 561,927,718,580,215.38/28,355,861.70
  6. Step 6: Final answer
    x = 19,816,986.15

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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.