Home / 21,298,180.95-31,947,271.89-5,124,132.24

Finding the Fourth Proportional to 21,298,180.95, 31,947,271.89 and 5,124,132.24

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Solution

The fourth proportional to 21,298,180.95, 31,947,271.89 and 5,124,132.24 is: 7,686,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298,180.95 : 31,947,271.89 = 5,124,132.24 : x
  2. Step 2: Convert to fraction form
    21,298,180.95/31,947,271.89 = 5,124,132.24/x
  3. Step 3: Cross multiply
    21,298,180.95x = 31,947,271.89 × 5,124,132.24
  4. Step 4: Simplify right side
    21,298,180.95x = 163,702,045,871,594.75
  5. Step 5: Solve for x
    x = 163,702,045,871,594.75/21,298,180.95
  6. Step 6: Final answer
    x = 7,686,198.47

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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.