Home / 648,146,973.12-894,363,619.68-516,323,659.20

Finding the Fourth Proportional to 648,146,973.12, 894,363,619.68 and 516,323,659.20

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Solution

The fourth proportional to 648,146,973.12, 894,363,619.68 and 516,323,659.20 is: 712,463,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,146,973.12 : 894,363,619.68 = 516,323,659.20 : x
  2. Step 2: Convert to fraction form
    648,146,973.12/894,363,619.68 = 516,323,659.20/x
  3. Step 3: Cross multiply
    648,146,973.12x = 894,363,619.68 × 516,323,659.20
  4. Step 4: Simplify right side
    648,146,973.12x = 461,781,096,768,534,720
  5. Step 5: Solve for x
    x = 461,781,096,768,534,720/648,146,973.12
  6. Step 6: Final answer
    x = 712,463,555.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.