Home / 21,528,881.12-29,709,639.87-11,739,300.50

Finding the Fourth Proportional to 21,528,881.12, 29,709,639.87 and 11,739,300.50

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Solution

The fourth proportional to 21,528,881.12, 29,709,639.87 and 11,739,300.50 is: 16,200,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528,881.12 : 29,709,639.87 = 11,739,300.50 : x
  2. Step 2: Convert to fraction form
    21,528,881.12/29,709,639.87 = 11,739,300.50/x
  3. Step 3: Cross multiply
    21,528,881.12x = 29,709,639.87 × 11,739,300.50
  4. Step 4: Simplify right side
    21,528,881.12x = 348,770,390,180,710.94
  5. Step 5: Solve for x
    x = 348,770,390,180,710.94/21,528,881.12
  6. Step 6: Final answer
    x = 16,200,116.87

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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.