Home / 13,140,031.92-18,133,048.44-7,338,911.28

Finding the Fourth Proportional to 13,140,031.92, 18,133,048.44 and 7,338,911.28

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Solution

The fourth proportional to 13,140,031.92, 18,133,048.44 and 7,338,911.28 is: 10,127,588.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140,031.92 : 18,133,048.44 = 7,338,911.28 : x
  2. Step 2: Convert to fraction form
    13,140,031.92/18,133,048.44 = 7,338,911.28/x
  3. Step 3: Cross multiply
    13,140,031.92x = 18,133,048.44 × 7,338,911.28
  4. Step 4: Simplify right side
    13,140,031.92x = 133,076,833,737,102.42
  5. Step 5: Solve for x
    x = 133,076,833,737,102.42/13,140,031.92
  6. Step 6: Final answer
    x = 10,127,588.32

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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.