Home / 13,355,129.28-18,430,079.64-7,553,786.16

Finding the Fourth Proportional to 13,355,129.28, 18,430,079.64 and 7,553,786.16

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Solution

The fourth proportional to 13,355,129.28, 18,430,079.64 and 7,553,786.16 is: 10,424,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355,129.28 : 18,430,079.64 = 7,553,786.16 : x
  2. Step 2: Convert to fraction form
    13,355,129.28/18,430,079.64 = 7,553,786.16/x
  3. Step 3: Cross multiply
    13,355,129.28x = 18,430,079.64 × 7,553,786.16
  4. Step 4: Simplify right side
    13,355,129.28x = 139,216,880,512,329.80
  5. Step 5: Solve for x
    x = 139,216,880,512,329.80/13,355,129.28
  6. Step 6: Final answer
    x = 10,424,225.60

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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.