Home / 408,341,345,258.20-563,765,369,287.74-259,938,972,419.86

Finding the Fourth Proportional to 408,341,345,258.20, 563,765,369,287.74 and 259,938,972,419.86

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Solution

The fourth proportional to 408,341,345,258.20, 563,765,369,287.74 and 259,938,972,419.86 is: 358,877,670,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,341,345,258.20 : 563,765,369,287.74 = 259,938,972,419.86 : x
  2. Step 2: Convert to fraction form
    408,341,345,258.20/563,765,369,287.74 = 259,938,972,419.86/x
  3. Step 3: Cross multiply
    408,341,345,258.20x = 563,765,369,287.74 × 259,938,972,419.86
  4. Step 4: Simplify right side
    408,341,345,258.20x = 146,544,590,778,558,029,234,176
  5. Step 5: Solve for x
    x = 146,544,590,778,558,029,234,176/408,341,345,258.20
  6. Step 6: Final answer
    x = 358,877,670,557.45

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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.