Home / 426,483,828.96-639,725,750.64-103,367,700.96

Finding the Fourth Proportional to 426,483,828.96, 639,725,750.64 and 103,367,700.96

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Solution

The fourth proportional to 426,483,828.96, 639,725,750.64 and 103,367,700.96 is: 155,051,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,483,828.96 : 639,725,750.64 = 103,367,700.96 : x
  2. Step 2: Convert to fraction form
    426,483,828.96/639,725,750.64 = 103,367,700.96/x
  3. Step 3: Cross multiply
    426,483,828.96x = 639,725,750.64 × 103,367,700.96
  4. Step 4: Simplify right side
    426,483,828.96x = 66,126,980,088,567,040
  5. Step 5: Solve for x
    x = 66,126,980,088,567,040/426,483,828.96
  6. Step 6: Final answer
    x = 155,051,553.19

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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.