Home / 168,403,919.20-252,605,878.80-155,806,799.20

Finding the Fourth Proportional to 168,403,919.20, 252,605,878.80 and 155,806,799.20

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Solution

The fourth proportional to 168,403,919.20, 252,605,878.80 and 155,806,799.20 is: 233,710,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,403,919.20 : 252,605,878.80 = 155,806,799.20 : x
  2. Step 2: Convert to fraction form
    168,403,919.20/252,605,878.80 = 155,806,799.20/x
  3. Step 3: Cross multiply
    168,403,919.20x = 252,605,878.80 × 155,806,799.20
  4. Step 4: Simplify right side
    168,403,919.20x = 39,357,713,434,931,136
  5. Step 5: Solve for x
    x = 39,357,713,434,931,136/168,403,919.20
  6. Step 6: Final answer
    x = 233,710,198.80

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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.