Home / 445,302,526.08-664,338,081.12-421,196,360.16

Finding the Fourth Proportional to 445,302,526.08, 664,338,081.12 and 421,196,360.16

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Solution

The fourth proportional to 445,302,526.08, 664,338,081.12 and 421,196,360.16 is: 628,374,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,302,526.08 : 664,338,081.12 = 421,196,360.16 : x
  2. Step 2: Convert to fraction form
    445,302,526.08/664,338,081.12 = 421,196,360.16/x
  3. Step 3: Cross multiply
    445,302,526.08x = 664,338,081.12 × 421,196,360.16
  4. Step 4: Simplify right side
    445,302,526.08x = 279,816,781,683,422,848
  5. Step 5: Solve for x
    x = 279,816,781,683,422,848/445,302,526.08
  6. Step 6: Final answer
    x = 628,374,566.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.