Home / 875,353,311.81-1,310,926,021.13-500,725,399.12

Finding the Fourth Proportional to 875,353,311.81, 1,310,926,021.13 and 500,725,399.12

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Solution

The fourth proportional to 875,353,311.81, 1,310,926,021.13 and 500,725,399.12 is: 749,884,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,353,311.81 : 1,310,926,021.13 = 500,725,399.12 : x
  2. Step 2: Convert to fraction form
    875,353,311.81/1,310,926,021.13 = 500,725,399.12/x
  3. Step 3: Cross multiply
    875,353,311.81x = 1,310,926,021.13 × 500,725,399.12
  4. Step 4: Simplify right side
    875,353,311.81x = 656,413,955,145,087,232
  5. Step 5: Solve for x
    x = 656,413,955,145,087,232/875,353,311.81
  6. Step 6: Final answer
    x = 749,884,585.22

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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.