Home / 486,518,077.47-671,405,788.32-277,670,031.33

Finding the Fourth Proportional to 486,518,077.47, 671,405,788.32 and 277,670,031.33

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Solution

The fourth proportional to 486,518,077.47, 671,405,788.32 and 277,670,031.33 is: 383,190,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,518,077.47 : 671,405,788.32 = 277,670,031.33 : x
  2. Step 2: Convert to fraction form
    486,518,077.47/671,405,788.32 = 277,670,031.33/x
  3. Step 3: Cross multiply
    486,518,077.47x = 671,405,788.32 × 277,670,031.33
  4. Step 4: Simplify right side
    486,518,077.47x = 186,429,266,277,957,760
  5. Step 5: Solve for x
    x = 186,429,266,277,957,760/486,518,077.47
  6. Step 6: Final answer
    x = 383,190,830.74

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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.