Home / 210,368,434.60-315,403,352.70-80,926,028.20

Finding the Fourth Proportional to 210,368,434.60, 315,403,352.70 and 80,926,028.20

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Solution

The fourth proportional to 210,368,434.60, 315,403,352.70 and 80,926,028.20 is: 121,331,608.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,368,434.60 : 315,403,352.70 = 80,926,028.20 : x
  2. Step 2: Convert to fraction form
    210,368,434.60/315,403,352.70 = 80,926,028.20/x
  3. Step 3: Cross multiply
    210,368,434.60x = 315,403,352.70 × 80,926,028.20
  4. Step 4: Simplify right side
    210,368,434.60x = 25,524,340,614,974,748
  5. Step 5: Solve for x
    x = 25,524,340,614,974,748/210,368,434.60
  6. Step 6: Final answer
    x = 121,331,608.82

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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.