Home / 19,173,666.20-28,776,828.90-7,822,261.40

Finding the Fourth Proportional to 19,173,666.20, 28,776,828.90 and 7,822,261.40

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Solution

The fourth proportional to 19,173,666.20, 28,776,828.90 and 7,822,261.40 is: 11,740,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173,666.20 : 28,776,828.90 = 7,822,261.40 : x
  2. Step 2: Convert to fraction form
    19,173,666.20/28,776,828.90 = 7,822,261.40/x
  3. Step 3: Cross multiply
    19,173,666.20x = 28,776,828.90 × 7,822,261.40
  4. Step 4: Simplify right side
    19,173,666.20x = 225,099,877,918,874.47
  5. Step 5: Solve for x
    x = 225,099,877,918,874.47/19,173,666.20
  6. Step 6: Final answer
    x = 11,740,054.07

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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.