Home / 28,808,464.91-39,762,065.69-19,880,106.35

Finding the Fourth Proportional to 28,808,464.91, 39,762,065.69 and 19,880,106.35

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Solution

The fourth proportional to 28,808,464.91, 39,762,065.69 and 19,880,106.35 is: 27,438,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808,464.91 : 39,762,065.69 = 19,880,106.35 : x
  2. Step 2: Convert to fraction form
    28,808,464.91/39,762,065.69 = 19,880,106.35/x
  3. Step 3: Cross multiply
    28,808,464.91x = 39,762,065.69 × 19,880,106.35
  4. Step 4: Simplify right side
    28,808,464.91x = 790,474,094,314,675.25
  5. Step 5: Solve for x
    x = 790,474,094,314,675.25/28,808,464.91
  6. Step 6: Final answer
    x = 27,438,952.30

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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.