Home / 43,437,640.40-65,139,871.80-13,135,432.40

Finding the Fourth Proportional to 43,437,640.40, 65,139,871.80 and 13,135,432.40

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Solution

The fourth proportional to 43,437,640.40, 65,139,871.80 and 13,135,432.40 is: 19,698,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,437,640.40 : 65,139,871.80 = 13,135,432.40 : x
  2. Step 2: Convert to fraction form
    43,437,640.40/65,139,871.80 = 13,135,432.40/x
  3. Step 3: Cross multiply
    43,437,640.40x = 65,139,871.80 × 13,135,432.40
  4. Step 4: Simplify right side
    43,437,640.40x = 855,640,382,573,566.25
  5. Step 5: Solve for x
    x = 855,640,382,573,566.25/43,437,640.40
  6. Step 6: Final answer
    x = 19,698,132.19

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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.