Home / 786,834,006.41-1,085,926,146.93-447,824,911.65

Finding the Fourth Proportional to 786,834,006.41, 1,085,926,146.93 and 447,824,911.65

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Solution

The fourth proportional to 786,834,006.41, 1,085,926,146.93 and 447,824,911.65 is: 618,052,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,834,006.41 : 1,085,926,146.93 = 447,824,911.65 : x
  2. Step 2: Convert to fraction form
    786,834,006.41/1,085,926,146.93 = 447,824,911.65/x
  3. Step 3: Cross multiply
    786,834,006.41x = 1,085,926,146.93 × 447,824,911.65
  4. Step 4: Simplify right side
    786,834,006.41x = 486,304,780,807,352,192
  5. Step 5: Solve for x
    x = 486,304,780,807,352,192/786,834,006.41
  6. Step 6: Final answer
    x = 618,052,571.25

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1.5x scale

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.