Home / 1,237,730,839.68-1,856,610,841.60-490,928,720

Finding the Fourth Proportional to 1,237,730,839.68, 1,856,610,841.60 and 490,928,720

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Solution

The fourth proportional to 1,237,730,839.68, 1,856,610,841.60 and 490,928,720 is: 736,398,863.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,730,839.68 : 1,856,610,841.60 = 490,928,720 : x
  2. Step 2: Convert to fraction form
    1,237,730,839.68/1,856,610,841.60 = 490,928,720/x
  3. Step 3: Cross multiply
    1,237,730,839.68x = 1,856,610,841.60 × 490,928,720
  4. Step 4: Simplify right side
    1,237,730,839.68x = 911,463,584,004,810,752
  5. Step 5: Solve for x
    x = 911,463,584,004,810,752/1,237,730,839.68
  6. Step 6: Final answer
    x = 736,398,863.78

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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.