Home / 391,203,007.65-586,804,511.48-253,453,500.45

Finding the Fourth Proportional to 391,203,007.65, 586,804,511.48 and 253,453,500.45

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Solution

The fourth proportional to 391,203,007.65, 586,804,511.48 and 253,453,500.45 is: 380,180,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,203,007.65 : 586,804,511.48 = 253,453,500.45 : x
  2. Step 2: Convert to fraction form
    391,203,007.65/586,804,511.48 = 253,453,500.45/x
  3. Step 3: Cross multiply
    391,203,007.65x = 586,804,511.48 × 253,453,500.45
  4. Step 4: Simplify right side
    391,203,007.65x = 148,727,657,513,190,944
  5. Step 5: Solve for x
    x = 148,727,657,513,190,944/391,203,007.65
  6. Step 6: Final answer
    x = 380,180,250.68

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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.