Home / 780,045,860.70-1,170,242,001.45-262,461,692.70

Finding the Fourth Proportional to 780,045,860.70, 1,170,242,001.45 and 262,461,692.70

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Solution

The fourth proportional to 780,045,860.70, 1,170,242,001.45 and 262,461,692.70 is: 393,750,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,045,860.70 : 1,170,242,001.45 = 262,461,692.70 : x
  2. Step 2: Convert to fraction form
    780,045,860.70/1,170,242,001.45 = 262,461,692.70/x
  3. Step 3: Cross multiply
    780,045,860.70x = 1,170,242,001.45 × 262,461,692.70
  4. Step 4: Simplify right side
    780,045,860.70x = 307,143,696,569,202,880
  5. Step 5: Solve for x
    x = 307,143,696,569,202,880/780,045,860.70
  6. Step 6: Final answer
    x = 393,750,819.08

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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.