Home / 85,329,852.60-128,293,377.30-83,538,262.20

Finding the Fourth Proportional to 85,329,852.60, 128,293,377.30 and 83,538,262.20

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Solution

The fourth proportional to 85,329,852.60, 128,293,377.30 and 83,538,262.20 is: 125,599,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329,852.60 : 128,293,377.30 = 83,538,262.20 : x
  2. Step 2: Convert to fraction form
    85,329,852.60/128,293,377.30 = 83,538,262.20/x
  3. Step 3: Cross multiply
    85,329,852.60x = 128,293,377.30 × 83,538,262.20
  4. Step 4: Simplify right side
    85,329,852.60x = 10,717,405,791,410,928
  5. Step 5: Solve for x
    x = 10,717,405,791,410,928/85,329,852.60
  6. Step 6: Final answer
    x = 125,599,722.31

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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.