Home / 780,045,853.20-1,170,241,990.20-262,461,685.20

Finding the Fourth Proportional to 780,045,853.20, 1,170,241,990.20 and 262,461,685.20

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Solution

The fourth proportional to 780,045,853.20, 1,170,241,990.20 and 262,461,685.20 is: 393,750,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,045,853.20 : 1,170,241,990.20 = 262,461,685.20 : x
  2. Step 2: Convert to fraction form
    780,045,853.20/1,170,241,990.20 = 262,461,685.20/x
  3. Step 3: Cross multiply
    780,045,853.20x = 1,170,241,990.20 × 262,461,685.20
  4. Step 4: Simplify right side
    780,045,853.20x = 307,143,684,839,693,888
  5. Step 5: Solve for x
    x = 307,143,684,839,693,888/780,045,853.20
  6. Step 6: Final answer
    x = 393,750,807.83

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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.