Home / 470,038,771.48-648,659,382.72-258,368,712.12

Finding the Fourth Proportional to 470,038,771.48, 648,659,382.72 and 258,368,712.12

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Solution

The fourth proportional to 470,038,771.48, 648,659,382.72 and 258,368,712.12 is: 356,552,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,038,771.48 : 648,659,382.72 = 258,368,712.12 : x
  2. Step 2: Convert to fraction form
    470,038,771.48/648,659,382.72 = 258,368,712.12/x
  3. Step 3: Cross multiply
    470,038,771.48x = 648,659,382.72 × 258,368,712.12
  4. Step 4: Simplify right side
    470,038,771.48x = 167,593,289,317,920,608
  5. Step 5: Solve for x
    x = 167,593,289,317,920,608/470,038,771.48
  6. Step 6: Final answer
    x = 356,552,053.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.