Home / 391,230,529.60-586,845,794.40-209,832,001.60

Finding the Fourth Proportional to 391,230,529.60, 586,845,794.40 and 209,832,001.60

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Solution

The fourth proportional to 391,230,529.60, 586,845,794.40 and 209,832,001.60 is: 314,748,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,230,529.60 : 586,845,794.40 = 209,832,001.60 : x
  2. Step 2: Convert to fraction form
    391,230,529.60/586,845,794.40 = 209,832,001.60/x
  3. Step 3: Cross multiply
    391,230,529.60x = 586,845,794.40 × 209,832,001.60
  4. Step 4: Simplify right side
    391,230,529.60x = 123,139,027,669,494,064
  5. Step 5: Solve for x
    x = 123,139,027,669,494,064/391,230,529.60
  6. Step 6: Final answer
    x = 314,748,002.40

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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.