Home / 21,014,423.80-31,521,635.70-13,834,065.40

Finding the Fourth Proportional to 21,014,423.80, 31,521,635.70 and 13,834,065.40

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Solution

The fourth proportional to 21,014,423.80, 31,521,635.70 and 13,834,065.40 is: 20,751,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,423.80 : 31,521,635.70 = 13,834,065.40 : x
  2. Step 2: Convert to fraction form
    21,014,423.80/31,521,635.70 = 13,834,065.40/x
  3. Step 3: Cross multiply
    21,014,423.80x = 31,521,635.70 × 13,834,065.40
  4. Step 4: Simplify right side
    21,014,423.80x = 436,072,369,788,774.81
  5. Step 5: Solve for x
    x = 436,072,369,788,774.81/21,014,423.80
  6. Step 6: Final answer
    x = 20,751,098.10

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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.