Home / 23,129,865-31,919,913.54-12,815,623.08

Finding the Fourth Proportional to 23,129,865, 31,919,913.54 and 12,815,623.08

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Solution

The fourth proportional to 23,129,865, 31,919,913.54 and 12,815,623.08 is: 17,685,947.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129,865 : 31,919,913.54 = 12,815,623.08 : x
  2. Step 2: Convert to fraction form
    23,129,865/31,919,913.54 = 12,815,623.08/x
  3. Step 3: Cross multiply
    23,129,865x = 31,919,913.54 × 12,815,623.08
  4. Step 4: Simplify right side
    23,129,865x = 409,073,580,674,828.50
  5. Step 5: Solve for x
    x = 409,073,580,674,828.50/23,129,865
  6. Step 6: Final answer
    x = 17,685,947.61

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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.