Home / 390,891,210.08-586,336,481.60-99,758,309.54

Finding the Fourth Proportional to 390,891,210.08, 586,336,481.60 and 99,758,309.54

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Solution

The fourth proportional to 390,891,210.08, 586,336,481.60 and 99,758,309.54 is: 149,637,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,891,210.08 : 586,336,481.60 = 99,758,309.54 : x
  2. Step 2: Convert to fraction form
    390,891,210.08/586,336,481.60 = 99,758,309.54/x
  3. Step 3: Cross multiply
    390,891,210.08x = 586,336,481.60 × 99,758,309.54
  4. Step 4: Simplify right side
    390,891,210.08x = 58,491,936,222,616,840
  5. Step 5: Solve for x
    x = 58,491,936,222,616,840/390,891,210.08
  6. Step 6: Final answer
    x = 149,637,379.19

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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.