Home / 413,938,036.32-620,907,055.04-168,237,105.92

Finding the Fourth Proportional to 413,938,036.32, 620,907,055.04 and 168,237,105.92

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Solution

The fourth proportional to 413,938,036.32, 620,907,055.04 and 168,237,105.92 is: 252,355,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,938,036.32 : 620,907,055.04 = 168,237,105.92 : x
  2. Step 2: Convert to fraction form
    413,938,036.32/620,907,055.04 = 168,237,105.92/x
  3. Step 3: Cross multiply
    413,938,036.32x = 620,907,055.04 × 168,237,105.92
  4. Step 4: Simplify right side
    413,938,036.32x = 104,459,605,985,239,728
  5. Step 5: Solve for x
    x = 104,459,605,985,239,728/413,938,036.32
  6. Step 6: Final answer
    x = 252,355,659.11

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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.