Home / 39,139,812.40-58,709,718.60-12,209,969.20

Finding the Fourth Proportional to 39,139,812.40, 58,709,718.60 and 12,209,969.20

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Solution

The fourth proportional to 39,139,812.40, 58,709,718.60 and 12,209,969.20 is: 18,314,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,812.40 : 58,709,718.60 = 12,209,969.20 : x
  2. Step 2: Convert to fraction form
    39,139,812.40/58,709,718.60 = 12,209,969.20/x
  3. Step 3: Cross multiply
    39,139,812.40x = 58,709,718.60 × 12,209,969.20
  4. Step 4: Simplify right side
    39,139,812.40x = 716,843,855,846,667.12
  5. Step 5: Solve for x
    x = 716,843,855,846,667.12/39,139,812.40
  6. Step 6: Final answer
    x = 18,314,953.80

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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.