Home / 771,802,867.04-1,065,085,637.78-419,379,933.02

Finding the Fourth Proportional to 771,802,867.04, 1,065,085,637.78 and 419,379,933.02

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Solution

The fourth proportional to 771,802,867.04, 1,065,085,637.78 and 419,379,933.02 is: 578,743,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,802,867.04 : 1,065,085,637.78 = 419,379,933.02 : x
  2. Step 2: Convert to fraction form
    771,802,867.04/1,065,085,637.78 = 419,379,933.02/x
  3. Step 3: Cross multiply
    771,802,867.04x = 1,065,085,637.78 × 419,379,933.02
  4. Step 4: Simplify right side
    771,802,867.04x = 446,675,543,432,740,352
  5. Step 5: Solve for x
    x = 446,675,543,432,740,352/771,802,867.04
  6. Step 6: Final answer
    x = 578,743,047.62

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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.