Home / 92,856,389.40-128,139,261.66-51,602,221.08

Finding the Fourth Proportional to 92,856,389.40, 128,139,261.66 and 51,602,221.08

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Solution

The fourth proportional to 92,856,389.40, 128,139,261.66 and 51,602,221.08 is: 71,209,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,856,389.40 : 128,139,261.66 = 51,602,221.08 : x
  2. Step 2: Convert to fraction form
    92,856,389.40/128,139,261.66 = 51,602,221.08/x
  3. Step 3: Cross multiply
    92,856,389.40x = 128,139,261.66 × 51,602,221.08
  4. Step 4: Simplify right side
    92,856,389.40x = 6,612,270,509,207,287
  5. Step 5: Solve for x
    x = 6,612,270,509,207,287/92,856,389.40
  6. Step 6: Final answer
    x = 71,209,644.83

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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.