Home / 18,640,419.96-25,710,528.48-12,442,341.60

Finding the Fourth Proportional to 18,640,419.96, 25,710,528.48 and 12,442,341.60

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Solution

The fourth proportional to 18,640,419.96, 25,710,528.48 and 12,442,341.60 is: 17,161,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640,419.96 : 25,710,528.48 = 12,442,341.60 : x
  2. Step 2: Convert to fraction form
    18,640,419.96/25,710,528.48 = 12,442,341.60/x
  3. Step 3: Cross multiply
    18,640,419.96x = 25,710,528.48 × 12,442,341.60
  4. Step 4: Simplify right side
    18,640,419.96x = 319,899,178,064,688.75
  5. Step 5: Solve for x
    x = 319,899,178,064,688.75/18,640,419.96
  6. Step 6: Final answer
    x = 17,161,586.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.