Home / 1,248,048,986.60-1,872,297,428.70-521,111,181.80

Finding the Fourth Proportional to 1,248,048,986.60, 1,872,297,428.70 and 521,111,181.80

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Solution

The fourth proportional to 1,248,048,986.60, 1,872,297,428.70 and 521,111,181.80 is: 781,760,280.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,048,986.60 : 1,872,297,428.70 = 521,111,181.80 : x
  2. Step 2: Convert to fraction form
    1,248,048,986.60/1,872,297,428.70 = 521,111,181.80/x
  3. Step 3: Cross multiply
    1,248,048,986.60x = 1,872,297,428.70 × 521,111,181.80
  4. Step 4: Simplify right side
    1,248,048,986.60x = 975,675,125,750,958,336
  5. Step 5: Solve for x
    x = 975,675,125,750,958,336/1,248,048,986.60
  6. Step 6: Final answer
    x = 781,760,280.43

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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.