Home / 54,328,362.40-81,492,543.60-13,938,846.40

Finding the Fourth Proportional to 54,328,362.40, 81,492,543.60 and 13,938,846.40

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Solution

The fourth proportional to 54,328,362.40, 81,492,543.60 and 13,938,846.40 is: 20,908,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,328,362.40 : 81,492,543.60 = 13,938,846.40 : x
  2. Step 2: Convert to fraction form
    54,328,362.40/81,492,543.60 = 13,938,846.40/x
  3. Step 3: Cross multiply
    54,328,362.40x = 81,492,543.60 × 13,938,846.40
  4. Step 4: Simplify right side
    54,328,362.40x = 1,135,912,047,985,703
  5. Step 5: Solve for x
    x = 1,135,912,047,985,703/54,328,362.40
  6. Step 6: Final answer
    x = 20,908,269.60

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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.