Home / 30,805,086.31-42,509,403.80-16,863,770.50

Finding the Fourth Proportional to 30,805,086.31, 42,509,403.80 and 16,863,770.50

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Solution

The fourth proportional to 30,805,086.31, 42,509,403.80 and 16,863,770.50 is: 23,271,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805,086.31 : 42,509,403.80 = 16,863,770.50 : x
  2. Step 2: Convert to fraction form
    30,805,086.31/42,509,403.80 = 16,863,770.50/x
  3. Step 3: Cross multiply
    30,805,086.31x = 42,509,403.80 × 16,863,770.50
  4. Step 4: Simplify right side
    30,805,086.31x = 716,868,829,742,533.38
  5. Step 5: Solve for x
    x = 716,868,829,742,533.38/30,805,086.31
  6. Step 6: Final answer
    x = 23,271,119.02

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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.