Home / 291,383,612.80-437,075,419.20-146,264,790.40

Finding the Fourth Proportional to 291,383,612.80, 437,075,419.20 and 146,264,790.40

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Solution

The fourth proportional to 291,383,612.80, 437,075,419.20 and 146,264,790.40 is: 219,397,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,383,612.80 : 437,075,419.20 = 146,264,790.40 : x
  2. Step 2: Convert to fraction form
    291,383,612.80/437,075,419.20 = 146,264,790.40/x
  3. Step 3: Cross multiply
    291,383,612.80x = 437,075,419.20 × 146,264,790.40
  4. Step 4: Simplify right side
    291,383,612.80x = 63,928,744,578,280,136
  5. Step 5: Solve for x
    x = 63,928,744,578,280,136/291,383,612.80
  6. Step 6: Final answer
    x = 219,397,185.60

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1.5x scale

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.