Home / 18,689,780.70-28,004,490.45-10,578,635.10

Finding the Fourth Proportional to 18,689,780.70, 28,004,490.45 and 10,578,635.10

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Solution

The fourth proportional to 18,689,780.70, 28,004,490.45 and 10,578,635.10 is: 15,850,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,780.70 : 28,004,490.45 = 10,578,635.10 : x
  2. Step 2: Convert to fraction form
    18,689,780.70/28,004,490.45 = 10,578,635.10/x
  3. Step 3: Cross multiply
    18,689,780.70x = 28,004,490.45 × 10,578,635.10
  4. Step 4: Simplify right side
    18,689,780.70x = 296,249,285,631,984.75
  5. Step 5: Solve for x
    x = 296,249,285,631,984.75/18,689,780.70
  6. Step 6: Final answer
    x = 15,850,870.08

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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.