Home / 18,936,000.40-28,371,341.40-8,817,869.20

Finding the Fourth Proportional to 18,936,000.40, 28,371,341.40 and 8,817,869.20

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Solution

The fourth proportional to 18,936,000.40, 28,371,341.40 and 8,817,869.20 is: 13,211,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936,000.40 : 28,371,341.40 = 8,817,869.20 : x
  2. Step 2: Convert to fraction form
    18,936,000.40/28,371,341.40 = 8,817,869.20/x
  3. Step 3: Cross multiply
    18,936,000.40x = 28,371,341.40 × 8,817,869.20
  4. Step 4: Simplify right side
    18,936,000.40x = 250,174,777,493,744.84
  5. Step 5: Solve for x
    x = 250,174,777,493,744.84/18,936,000.40
  6. Step 6: Final answer
    x = 13,211,595.49

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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.