Home / 85,178,261.40-127,767,392.10-54,567,259.80

Finding the Fourth Proportional to 85,178,261.40, 127,767,392.10 and 54,567,259.80

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Solution

The fourth proportional to 85,178,261.40, 127,767,392.10 and 54,567,259.80 is: 81,850,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,178,261.40 : 127,767,392.10 = 54,567,259.80 : x
  2. Step 2: Convert to fraction form
    85,178,261.40/127,767,392.10 = 54,567,259.80/x
  3. Step 3: Cross multiply
    85,178,261.40x = 127,767,392.10 × 54,567,259.80
  4. Step 4: Simplify right side
    85,178,261.40x = 6,971,916,478,689,167
  5. Step 5: Solve for x
    x = 6,971,916,478,689,167/85,178,261.40
  6. Step 6: Final answer
    x = 81,850,889.70

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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.