Home / 1,539,648,004.70-2,309,472,007.05-390,790,660.70

Finding the Fourth Proportional to 1,539,648,004.70, 2,309,472,007.05 and 390,790,660.70

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Solution

The fourth proportional to 1,539,648,004.70, 2,309,472,007.05 and 390,790,660.70 is: 586,185,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,648,004.70 : 2,309,472,007.05 = 390,790,660.70 : x
  2. Step 2: Convert to fraction form
    1,539,648,004.70/2,309,472,007.05 = 390,790,660.70/x
  3. Step 3: Cross multiply
    1,539,648,004.70x = 2,309,472,007.05 × 390,790,660.70
  4. Step 4: Simplify right side
    1,539,648,004.70x = 902,520,091,503,224,576
  5. Step 5: Solve for x
    x = 902,520,091,503,224,576/1,539,648,004.70
  6. Step 6: Final answer
    x = 586,185,991.05

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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.