Home / 18,725,603.40-28,088,405.10-12,007,139.40

Finding the Fourth Proportional to 18,725,603.40, 28,088,405.10 and 12,007,139.40

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Solution

The fourth proportional to 18,725,603.40, 28,088,405.10 and 12,007,139.40 is: 18,010,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725,603.40 : 28,088,405.10 = 12,007,139.40 : x
  2. Step 2: Convert to fraction form
    18,725,603.40/28,088,405.10 = 12,007,139.40/x
  3. Step 3: Cross multiply
    18,725,603.40x = 28,088,405.10 × 12,007,139.40
  4. Step 4: Simplify right side
    18,725,603.40x = 337,261,395,559,370.94
  5. Step 5: Solve for x
    x = 337,261,395,559,370.94/18,725,603.40
  6. Step 6: Final answer
    x = 18,010,709.10

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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.