Home / 21,022,117.80-31,533,176.70-19,746,659.40

Finding the Fourth Proportional to 21,022,117.80, 31,533,176.70 and 19,746,659.40

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Solution

The fourth proportional to 21,022,117.80, 31,533,176.70 and 19,746,659.40 is: 29,619,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,117.80 : 31,533,176.70 = 19,746,659.40 : x
  2. Step 2: Convert to fraction form
    21,022,117.80/31,533,176.70 = 19,746,659.40/x
  3. Step 3: Cross multiply
    21,022,117.80x = 31,533,176.70 × 19,746,659.40
  4. Step 4: Simplify right side
    21,022,117.80x = 622,674,900,094,915.88
  5. Step 5: Solve for x
    x = 622,674,900,094,915.88/21,022,117.80
  6. Step 6: Final answer
    x = 29,619,989.10

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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.