Home / 28,656,071.60-42,984,107.40-19,586,145.20

Finding the Fourth Proportional to 28,656,071.60, 42,984,107.40 and 19,586,145.20

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Solution

The fourth proportional to 28,656,071.60, 42,984,107.40 and 19,586,145.20 is: 29,379,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,071.60 : 42,984,107.40 = 19,586,145.20 : x
  2. Step 2: Convert to fraction form
    28,656,071.60/42,984,107.40 = 19,586,145.20/x
  3. Step 3: Cross multiply
    28,656,071.60x = 42,984,107.40 × 19,586,145.20
  4. Step 4: Simplify right side
    28,656,071.60x = 841,892,968,828,794.38
  5. Step 5: Solve for x
    x = 841,892,968,828,794.38/28,656,071.60
  6. Step 6: Final answer
    x = 29,379,217.80

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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.