Home / 14,913,866.45-20,578,730.21-8,387,106.67

Finding the Fourth Proportional to 14,913,866.45, 20,578,730.21 and 8,387,106.67

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Solution

The fourth proportional to 14,913,866.45, 20,578,730.21 and 8,387,106.67 is: 11,572,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913,866.45 : 20,578,730.21 = 8,387,106.67 : x
  2. Step 2: Convert to fraction form
    14,913,866.45/20,578,730.21 = 8,387,106.67/x
  3. Step 3: Cross multiply
    14,913,866.45x = 20,578,730.21 × 8,387,106.67
  4. Step 4: Simplify right side
    14,913,866.45x = 172,596,005,311,039.12
  5. Step 5: Solve for x
    x = 172,596,005,311,039.12/14,913,866.45
  6. Step 6: Final answer
    x = 11,572,854.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.