Home / 21,314,378.40-31,971,567.60-14,931,837.60

Finding the Fourth Proportional to 21,314,378.40, 31,971,567.60 and 14,931,837.60

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Solution

The fourth proportional to 21,314,378.40, 31,971,567.60 and 14,931,837.60 is: 22,397,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314,378.40 : 31,971,567.60 = 14,931,837.60 : x
  2. Step 2: Convert to fraction form
    21,314,378.40/31,971,567.60 = 14,931,837.60/x
  3. Step 3: Cross multiply
    21,314,378.40x = 31,971,567.60 × 14,931,837.60
  4. Step 4: Simplify right side
    21,314,378.40x = 477,394,255,220,621.75
  5. Step 5: Solve for x
    x = 477,394,255,220,621.75/21,314,378.40
  6. Step 6: Final answer
    x = 22,397,756.40

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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.