Home / 520,141,821.60-780,212,732.40-347,701,245.60

Finding the Fourth Proportional to 520,141,821.60, 780,212,732.40 and 347,701,245.60

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Solution

The fourth proportional to 520,141,821.60, 780,212,732.40 and 347,701,245.60 is: 521,551,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,141,821.60 : 780,212,732.40 = 347,701,245.60 : x
  2. Step 2: Convert to fraction form
    520,141,821.60/780,212,732.40 = 347,701,245.60/x
  3. Step 3: Cross multiply
    520,141,821.60x = 780,212,732.40 × 347,701,245.60
  4. Step 4: Simplify right side
    520,141,821.60x = 271,280,938,888,459,488
  5. Step 5: Solve for x
    x = 271,280,938,888,459,488/520,141,821.60
  6. Step 6: Final answer
    x = 521,551,868.40

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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.