Home / 28,516,280.40-42,774,420.60-17,178,872.40

Finding the Fourth Proportional to 28,516,280.40, 42,774,420.60 and 17,178,872.40

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Solution

The fourth proportional to 28,516,280.40, 42,774,420.60 and 17,178,872.40 is: 25,768,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516,280.40 : 42,774,420.60 = 17,178,872.40 : x
  2. Step 2: Convert to fraction form
    28,516,280.40/42,774,420.60 = 17,178,872.40/x
  3. Step 3: Cross multiply
    28,516,280.40x = 42,774,420.60 × 17,178,872.40
  4. Step 4: Simplify right side
    28,516,280.40x = 734,816,313,471,331.38
  5. Step 5: Solve for x
    x = 734,816,313,471,331.38/28,516,280.40
  6. Step 6: Final answer
    x = 25,768,308.60

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1.5x scale

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.