Home / 383,878,831.82-529,751,638.59-207,666,780.50

Finding the Fourth Proportional to 383,878,831.82, 529,751,638.59 and 207,666,780.50

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Solution

The fourth proportional to 383,878,831.82, 529,751,638.59 and 207,666,780.50 is: 286,579,535.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,878,831.82 : 529,751,638.59 = 207,666,780.50 : x
  2. Step 2: Convert to fraction form
    383,878,831.82/529,751,638.59 = 207,666,780.50/x
  3. Step 3: Cross multiply
    383,878,831.82x = 529,751,638.59 × 207,666,780.50
  4. Step 4: Simplify right side
    383,878,831.82x = 110,011,817,250,584,848
  5. Step 5: Solve for x
    x = 110,011,817,250,584,848/383,878,831.82
  6. Step 6: Final answer
    x = 286,579,535.34

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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.