Home / 85,130,029.41-127,695,045.80-20,433,834.46

Finding the Fourth Proportional to 85,130,029.41, 127,695,045.80 and 20,433,834.46

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Solution

The fourth proportional to 85,130,029.41, 127,695,045.80 and 20,433,834.46 is: 30,650,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130,029.41 : 127,695,045.80 = 20,433,834.46 : x
  2. Step 2: Convert to fraction form
    85,130,029.41/127,695,045.80 = 20,433,834.46/x
  3. Step 3: Cross multiply
    85,130,029.41x = 127,695,045.80 × 20,433,834.46
  4. Step 4: Simplify right side
    85,130,029.41x = 2,609,299,427,239,318.50
  5. Step 5: Solve for x
    x = 2,609,299,427,239,318.50/85,130,029.41
  6. Step 6: Final answer
    x = 30,650,752.09

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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.