Home / 28,665,567.19-39,562,387.59-16,908,156.78

Finding the Fourth Proportional to 28,665,567.19, 39,562,387.59 and 16,908,156.78

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Solution

The fourth proportional to 28,665,567.19, 39,562,387.59 and 16,908,156.78 is: 23,335,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665,567.19 : 39,562,387.59 = 16,908,156.78 : x
  2. Step 2: Convert to fraction form
    28,665,567.19/39,562,387.59 = 16,908,156.78/x
  3. Step 3: Cross multiply
    28,665,567.19x = 39,562,387.59 × 16,908,156.78
  4. Step 4: Simplify right side
    28,665,567.19x = 668,927,051,782,784.62
  5. Step 5: Solve for x
    x = 668,927,051,782,784.62/28,665,567.19
  6. Step 6: Final answer
    x = 23,335,559.60

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Double scale
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1.5x scale

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.