Home / 30,680,171.12-42,338,835.60-16,742,507.60

Finding the Fourth Proportional to 30,680,171.12, 42,338,835.60 and 16,742,507.60

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Solution

The fourth proportional to 30,680,171.12, 42,338,835.60 and 16,742,507.60 is: 23,104,769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680,171.12 : 42,338,835.60 = 16,742,507.60 : x
  2. Step 2: Convert to fraction form
    30,680,171.12/42,338,835.60 = 16,742,507.60/x
  3. Step 3: Cross multiply
    30,680,171.12x = 42,338,835.60 × 16,742,507.60
  4. Step 4: Simplify right side
    30,680,171.12x = 708,858,276,808,150.62
  5. Step 5: Solve for x
    x = 708,858,276,808,150.62/30,680,171.12
  6. Step 6: Final answer
    x = 23,104,769.33

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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.