Home / 205,821,075.70-308,731,613.55-103,784,403.70

Finding the Fourth Proportional to 205,821,075.70, 308,731,613.55 and 103,784,403.70

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Solution

The fourth proportional to 205,821,075.70, 308,731,613.55 and 103,784,403.70 is: 155,676,605.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,821,075.70 : 308,731,613.55 = 103,784,403.70 : x
  2. Step 2: Convert to fraction form
    205,821,075.70/308,731,613.55 = 103,784,403.70/x
  3. Step 3: Cross multiply
    205,821,075.70x = 308,731,613.55 × 103,784,403.70
  4. Step 4: Simplify right side
    205,821,075.70x = 32,041,526,415,625,592
  5. Step 5: Solve for x
    x = 32,041,526,415,625,592/205,821,075.70
  6. Step 6: Final answer
    x = 155,676,605.55

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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.