Home / 25,509,211,771.80-38,263,817,657.70-18,897,235,426.20

Finding the Fourth Proportional to 25,509,211,771.80, 38,263,817,657.70 and 18,897,235,426.20

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Solution

The fourth proportional to 25,509,211,771.80, 38,263,817,657.70 and 18,897,235,426.20 is: 28,345,853,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,509,211,771.80 : 38,263,817,657.70 = 18,897,235,426.20 : x
  2. Step 2: Convert to fraction form
    25,509,211,771.80/38,263,817,657.70 = 18,897,235,426.20/x
  3. Step 3: Cross multiply
    25,509,211,771.80x = 38,263,817,657.70 × 18,897,235,426.20
  4. Step 4: Simplify right side
    25,509,211,771.80x = 723,080,370,582,745,513,984
  5. Step 5: Solve for x
    x = 723,080,370,582,745,513,984/25,509,211,771.80
  6. Step 6: Final answer
    x = 28,345,853,139.30

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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.