Home / 18,756,215.73-28,130,386.95-5,289,894.45

Finding the Fourth Proportional to 18,756,215.73, 28,130,386.95 and 5,289,894.45

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Solution

The fourth proportional to 18,756,215.73, 28,130,386.95 and 5,289,894.45 is: 7,933,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,215.73 : 28,130,386.95 = 5,289,894.45 : x
  2. Step 2: Convert to fraction form
    18,756,215.73/28,130,386.95 = 5,289,894.45/x
  3. Step 3: Cross multiply
    18,756,215.73x = 28,130,386.95 × 5,289,894.45
  4. Step 4: Simplify right side
    18,756,215.73x = 148,806,777,803,157.44
  5. Step 5: Solve for x
    x = 148,806,777,803,157.44/18,756,215.73
  6. Step 6: Final answer
    x = 7,933,731.41

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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.