Home / 28,081,983.80-42,122,975.70-19,571,929.40

Finding the Fourth Proportional to 28,081,983.80, 42,122,975.70 and 19,571,929.40

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Solution

The fourth proportional to 28,081,983.80, 42,122,975.70 and 19,571,929.40 is: 29,357,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,983.80 : 42,122,975.70 = 19,571,929.40 : x
  2. Step 2: Convert to fraction form
    28,081,983.80/42,122,975.70 = 19,571,929.40/x
  3. Step 3: Cross multiply
    28,081,983.80x = 42,122,975.70 × 19,571,929.40
  4. Step 4: Simplify right side
    28,081,983.80x = 824,427,906,518,315.62
  5. Step 5: Solve for x
    x = 824,427,906,518,315.62/28,081,983.80
  6. Step 6: Final answer
    x = 29,357,894.10

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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.