Home / 470,712,276.78-649,588,818.78-259,043,460

Finding the Fourth Proportional to 470,712,276.78, 649,588,818.78 and 259,043,460

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Solution

The fourth proportional to 470,712,276.78, 649,588,818.78 and 259,043,460 is: 357,483,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,712,276.78 : 649,588,818.78 = 259,043,460 : x
  2. Step 2: Convert to fraction form
    470,712,276.78/649,588,818.78 = 259,043,460/x
  3. Step 3: Cross multiply
    470,712,276.78x = 649,588,818.78 × 259,043,460
  4. Step 4: Simplify right side
    470,712,276.78x = 168,271,735,194,084,160
  5. Step 5: Solve for x
    x = 168,271,735,194,084,160/470,712,276.78
  6. Step 6: Final answer
    x = 357,483,208.95

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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.