Home / 15,784,055.33-21,783,834.05-13,130,214.72

Finding the Fourth Proportional to 15,784,055.33, 21,783,834.05 and 13,130,214.72

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Solution

The fourth proportional to 15,784,055.33, 21,783,834.05 and 13,130,214.72 is: 18,121,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,055.33 : 21,783,834.05 = 13,130,214.72 : x
  2. Step 2: Convert to fraction form
    15,784,055.33/21,783,834.05 = 13,130,214.72/x
  3. Step 3: Cross multiply
    15,784,055.33x = 21,783,834.05 × 13,130,214.72
  4. Step 4: Simplify right side
    15,784,055.33x = 286,026,418,435,696.19
  5. Step 5: Solve for x
    x = 286,026,418,435,696.19/15,784,055.33
  6. Step 6: Final answer
    x = 18,121,225.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.