Home / 313,151,459.70-469,721,047.12-126,400,435.10

Finding the Fourth Proportional to 313,151,459.70, 469,721,047.12 and 126,400,435.10

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Solution

The fourth proportional to 313,151,459.70, 469,721,047.12 and 126,400,435.10 is: 189,598,173.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,151,459.70 : 469,721,047.12 = 126,400,435.10 : x
  2. Step 2: Convert to fraction form
    313,151,459.70/469,721,047.12 = 126,400,435.10/x
  3. Step 3: Cross multiply
    313,151,459.70x = 469,721,047.12 × 126,400,435.10
  4. Step 4: Simplify right side
    313,151,459.70x = 59,372,944,731,404,088
  5. Step 5: Solve for x
    x = 59,372,944,731,404,088/313,151,459.70
  6. Step 6: Final answer
    x = 189,598,173.32

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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.