Home / 14,129,619.40-21,152,438.70-8,446,918.60

Finding the Fourth Proportional to 14,129,619.40, 21,152,438.70 and 8,446,918.60

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Solution

The fourth proportional to 14,129,619.40, 21,152,438.70 and 8,446,918.60 is: 12,645,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129,619.40 : 21,152,438.70 = 8,446,918.60 : x
  2. Step 2: Convert to fraction form
    14,129,619.40/21,152,438.70 = 8,446,918.60/x
  3. Step 3: Cross multiply
    14,129,619.40x = 21,152,438.70 × 8,446,918.60
  4. Step 4: Simplify right side
    14,129,619.40x = 178,672,927,890,389.81
  5. Step 5: Solve for x
    x = 178,672,927,890,389.81/14,129,619.40
  6. Step 6: Final answer
    x = 12,645,275.35

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1.5x scale

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.