Home / 21,748,038.40-30,012,401.37-11,959,113.88

Finding the Fourth Proportional to 21,748,038.40, 30,012,401.37 and 11,959,113.88

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Solution

The fourth proportional to 21,748,038.40, 30,012,401.37 and 11,959,113.88 is: 16,503,636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748,038.40 : 30,012,401.37 = 11,959,113.88 : x
  2. Step 2: Convert to fraction form
    21,748,038.40/30,012,401.37 = 11,959,113.88/x
  3. Step 3: Cross multiply
    21,748,038.40x = 30,012,401.37 × 11,959,113.88
  4. Step 4: Simplify right side
    21,748,038.40x = 358,921,725,796,098.06
  5. Step 5: Solve for x
    x = 358,921,725,796,098.06/21,748,038.40
  6. Step 6: Final answer
    x = 16,503,636.75

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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.