Home / 28,136,812.28-42,205,152.81-18,482,366.39

Finding the Fourth Proportional to 28,136,812.28, 42,205,152.81 and 18,482,366.39

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Solution

The fourth proportional to 28,136,812.28, 42,205,152.81 and 18,482,366.39 is: 27,723,506.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136,812.28 : 42,205,152.81 = 18,482,366.39 : x
  2. Step 2: Convert to fraction form
    28,136,812.28/42,205,152.81 = 18,482,366.39/x
  3. Step 3: Cross multiply
    28,136,812.28x = 42,205,152.81 × 18,482,366.39
  4. Step 4: Simplify right side
    28,136,812.28x = 780,051,097,780,358.12
  5. Step 5: Solve for x
    x = 780,051,097,780,358.12/28,136,812.28
  6. Step 6: Final answer
    x = 27,723,506.49

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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.