Home / 209,006,549.62-313,632,075.62-77,939,373.25

Finding the Fourth Proportional to 209,006,549.62, 313,632,075.62 and 77,939,373.25

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Solution

The fourth proportional to 209,006,549.62, 313,632,075.62 and 77,939,373.25 is: 116,954,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,006,549.62 : 313,632,075.62 = 77,939,373.25 : x
  2. Step 2: Convert to fraction form
    209,006,549.62/313,632,075.62 = 77,939,373.25/x
  3. Step 3: Cross multiply
    209,006,549.62x = 313,632,075.62 × 77,939,373.25
  4. Step 4: Simplify right side
    209,006,549.62x = 24,444,287,403,745,628
  5. Step 5: Solve for x
    x = 24,444,287,403,745,628/209,006,549.62
  6. Step 6: Final answer
    x = 116,954,647.82

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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.