Home / 18,955,425.60-28,433,138.40-18,671,990.40

Finding the Fourth Proportional to 18,955,425.60, 28,433,138.40 and 18,671,990.40

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Solution

The fourth proportional to 18,955,425.60, 28,433,138.40 and 18,671,990.40 is: 28,007,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955,425.60 : 28,433,138.40 = 18,671,990.40 : x
  2. Step 2: Convert to fraction form
    18,955,425.60/28,433,138.40 = 18,671,990.40/x
  3. Step 3: Cross multiply
    18,955,425.60x = 28,433,138.40 × 18,671,990.40
  4. Step 4: Simplify right side
    18,955,425.60x = 530,903,287,246,671.31
  5. Step 5: Solve for x
    x = 530,903,287,246,671.31/18,955,425.60
  6. Step 6: Final answer
    x = 28,007,985.60

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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.