Home / 85,360,622.28-128,064,907.80-34,278,513.36

Finding the Fourth Proportional to 85,360,622.28, 128,064,907.80 and 34,278,513.36

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Solution

The fourth proportional to 85,360,622.28, 128,064,907.80 and 34,278,513.36 is: 51,427,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360,622.28 : 128,064,907.80 = 34,278,513.36 : x
  2. Step 2: Convert to fraction form
    85,360,622.28/128,064,907.80 = 34,278,513.36/x
  3. Step 3: Cross multiply
    85,360,622.28x = 128,064,907.80 × 34,278,513.36
  4. Step 4: Simplify right side
    85,360,622.28x = 4,389,874,652,969,468
  5. Step 5: Solve for x
    x = 4,389,874,652,969,468/85,360,622.28
  6. Step 6: Final answer
    x = 51,427,397.50

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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.