Home / 186,780,387.30-280,170,580.95-100,686,945.30

Finding the Fourth Proportional to 186,780,387.30, 280,170,580.95 and 100,686,945.30

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Solution

The fourth proportional to 186,780,387.30, 280,170,580.95 and 100,686,945.30 is: 151,030,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,780,387.30 : 280,170,580.95 = 100,686,945.30 : x
  2. Step 2: Convert to fraction form
    186,780,387.30/280,170,580.95 = 100,686,945.30/x
  3. Step 3: Cross multiply
    186,780,387.30x = 280,170,580.95 × 100,686,945.30
  4. Step 4: Simplify right side
    186,780,387.30x = 28,209,519,958,781,868
  5. Step 5: Solve for x
    x = 28,209,519,958,781,868/186,780,387.30
  6. Step 6: Final answer
    x = 151,030,417.95

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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.