Home / 285,768,018.80-428,652,028.20-283,752,479.60

Finding the Fourth Proportional to 285,768,018.80, 428,652,028.20 and 283,752,479.60

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Solution

The fourth proportional to 285,768,018.80, 428,652,028.20 and 283,752,479.60 is: 425,628,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,768,018.80 : 428,652,028.20 = 283,752,479.60 : x
  2. Step 2: Convert to fraction form
    285,768,018.80/428,652,028.20 = 283,752,479.60/x
  3. Step 3: Cross multiply
    285,768,018.80x = 428,652,028.20 × 283,752,479.60
  4. Step 4: Simplify right side
    285,768,018.80x = 121,631,075,887,319,136
  5. Step 5: Solve for x
    x = 121,631,075,887,319,136/285,768,018.80
  6. Step 6: Final answer
    x = 425,628,719.40

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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.