Home / 13,223,997.76-18,249,386.40-7,423,197.76

Finding the Fourth Proportional to 13,223,997.76, 18,249,386.40 and 7,423,197.76

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Solution

The fourth proportional to 13,223,997.76, 18,249,386.40 and 7,423,197.76 is: 10,244,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223,997.76 : 18,249,386.40 = 7,423,197.76 : x
  2. Step 2: Convert to fraction form
    13,223,997.76/18,249,386.40 = 7,423,197.76/x
  3. Step 3: Cross multiply
    13,223,997.76x = 18,249,386.40 × 7,423,197.76
  4. Step 4: Simplify right side
    13,223,997.76x = 135,468,804,245,854.45
  5. Step 5: Solve for x
    x = 135,468,804,245,854.45/13,223,997.76
  6. Step 6: Final answer
    x = 10,244,164.19

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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.