Home / 391,230,530.60-586,845,795.90-209,832,002.60

Finding the Fourth Proportional to 391,230,530.60, 586,845,795.90 and 209,832,002.60

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Solution

The fourth proportional to 391,230,530.60, 586,845,795.90 and 209,832,002.60 is: 314,748,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,230,530.60 : 586,845,795.90 = 209,832,002.60 : x
  2. Step 2: Convert to fraction form
    391,230,530.60/586,845,795.90 = 209,832,002.60/x
  3. Step 3: Cross multiply
    391,230,530.60x = 586,845,795.90 × 209,832,002.60
  4. Step 4: Simplify right side
    391,230,530.60x = 123,139,028,571,087,856
  5. Step 5: Solve for x
    x = 123,139,028,571,087,856/391,230,530.60
  6. Step 6: Final answer
    x = 314,748,003.90

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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.