Home / 1,621,122,075.42-2,431,879,884.36-456,590,565.90

Finding the Fourth Proportional to 1,621,122,075.42, 2,431,879,884.36 and 456,590,565.90

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Solution

The fourth proportional to 1,621,122,075.42, 2,431,879,884.36 and 456,590,565.90 is: 684,941,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,122,075.42 : 2,431,879,884.36 = 456,590,565.90 : x
  2. Step 2: Convert to fraction form
    1,621,122,075.42/2,431,879,884.36 = 456,590,565.90/x
  3. Step 3: Cross multiply
    1,621,122,075.42x = 2,431,879,884.36 × 456,590,565.90
  4. Step 4: Simplify right side
    1,621,122,075.42x = 1,110,373,412,600,758,912
  5. Step 5: Solve for x
    x = 1,110,373,412,600,758,912/1,621,122,075.42
  6. Step 6: Final answer
    x = 684,941,269.65

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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.