Home / 18,731,071.40-28,096,607.10-12,012,607.40

Finding the Fourth Proportional to 18,731,071.40, 28,096,607.10 and 12,012,607.40

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Solution

The fourth proportional to 18,731,071.40, 28,096,607.10 and 12,012,607.40 is: 18,018,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,071.40 : 28,096,607.10 = 12,012,607.40 : x
  2. Step 2: Convert to fraction form
    18,731,071.40/28,096,607.10 = 12,012,607.40/x
  3. Step 3: Cross multiply
    18,731,071.40x = 28,096,607.10 × 12,012,607.40
  4. Step 4: Simplify right side
    18,731,071.40x = 337,513,510,364,352.56
  5. Step 5: Solve for x
    x = 337,513,510,364,352.56/18,731,071.40
  6. Step 6: Final answer
    x = 18,018,911.10

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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.