Home / 21,130,370.57-31,624,931.84-12,030,025.13

Finding the Fourth Proportional to 21,130,370.57, 31,624,931.84 and 12,030,025.13

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Solution

The fourth proportional to 21,130,370.57, 31,624,931.84 and 12,030,025.13 is: 18,004,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,130,370.57 : 31,624,931.84 = 12,030,025.13 : x
  2. Step 2: Convert to fraction form
    21,130,370.57/31,624,931.84 = 12,030,025.13/x
  3. Step 3: Cross multiply
    21,130,370.57x = 31,624,931.84 × 12,030,025.13
  4. Step 4: Simplify right side
    21,130,370.57x = 380,448,724,551,462.38
  5. Step 5: Solve for x
    x = 380,448,724,551,462.38/21,130,370.57
  6. Step 6: Final answer
    x = 18,004,829.75

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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.