Home / 1,429,747,119.72-2,144,669,061.60-380,486,357.28

Finding the Fourth Proportional to 1,429,747,119.72, 2,144,669,061.60 and 380,486,357.28

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Solution

The fourth proportional to 1,429,747,119.72, 2,144,669,061.60 and 380,486,357.28 is: 570,742,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,747,119.72 : 2,144,669,061.60 = 380,486,357.28 : x
  2. Step 2: Convert to fraction form
    1,429,747,119.72/2,144,669,061.60 = 380,486,357.28/x
  3. Step 3: Cross multiply
    1,429,747,119.72x = 2,144,669,061.60 × 380,486,357.28
  4. Step 4: Simplify right side
    1,429,747,119.72x = 816,017,318,819,299,840
  5. Step 5: Solve for x
    x = 816,017,318,819,299,840/1,429,747,119.72
  6. Step 6: Final answer
    x = 570,742,411.41

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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.