Home / 39,139,816.40-58,709,724.60-12,209,973.20

Finding the Fourth Proportional to 39,139,816.40, 58,709,724.60 and 12,209,973.20

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Solution

The fourth proportional to 39,139,816.40, 58,709,724.60 and 12,209,973.20 is: 18,314,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,816.40 : 58,709,724.60 = 12,209,973.20 : x
  2. Step 2: Convert to fraction form
    39,139,816.40/58,709,724.60 = 12,209,973.20/x
  3. Step 3: Cross multiply
    39,139,816.40x = 58,709,724.60 × 12,209,973.20
  4. Step 4: Simplify right side
    39,139,816.40x = 716,844,163,945,380.75
  5. Step 5: Solve for x
    x = 716,844,163,945,380.75/39,139,816.40
  6. Step 6: Final answer
    x = 18,314,959.80

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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.