Home / 785,021,702.50-1,083,315,919.58-427,792,582.65

Finding the Fourth Proportional to 785,021,702.50, 1,083,315,919.58 and 427,792,582.65

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Solution

The fourth proportional to 785,021,702.50, 1,083,315,919.58 and 427,792,582.65 is: 590,346,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,021,702.50 : 1,083,315,919.58 = 427,792,582.65 : x
  2. Step 2: Convert to fraction form
    785,021,702.50/1,083,315,919.58 = 427,792,582.65/x
  3. Step 3: Cross multiply
    785,021,702.50x = 1,083,315,919.58 × 427,792,582.65
  4. Step 4: Simplify right side
    785,021,702.50x = 463,434,515,064,057,344
  5. Step 5: Solve for x
    x = 463,434,515,064,057,344/785,021,702.50
  6. Step 6: Final answer
    x = 590,346,118.57

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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.