Home / 85,018,802.40-127,538,555.40-30,437,114.40

Finding the Fourth Proportional to 85,018,802.40, 127,538,555.40 and 30,437,114.40

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Solution

The fourth proportional to 85,018,802.40, 127,538,555.40 and 30,437,114.40 is: 45,659,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,018,802.40 : 127,538,555.40 = 30,437,114.40 : x
  2. Step 2: Convert to fraction form
    85,018,802.40/127,538,555.40 = 30,437,114.40/x
  3. Step 3: Cross multiply
    85,018,802.40x = 127,538,555.40 × 30,437,114.40
  4. Step 4: Simplify right side
    85,018,802.40x = 3,881,905,601,120,538
  5. Step 5: Solve for x
    x = 3,881,905,601,120,538/85,018,802.40
  6. Step 6: Final answer
    x = 45,659,377.59

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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.