Home / 85,293,115.20-127,939,672.80-56,571,681.60

Finding the Fourth Proportional to 85,293,115.20, 127,939,672.80 and 56,571,681.60

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Solution

The fourth proportional to 85,293,115.20, 127,939,672.80 and 56,571,681.60 is: 84,857,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,115.20 : 127,939,672.80 = 56,571,681.60 : x
  2. Step 2: Convert to fraction form
    85,293,115.20/127,939,672.80 = 56,571,681.60/x
  3. Step 3: Cross multiply
    85,293,115.20x = 127,939,672.80 × 56,571,681.60
  4. Step 4: Simplify right side
    85,293,115.20x = 7,237,762,433,649,781
  5. Step 5: Solve for x
    x = 7,237,762,433,649,781/85,293,115.20
  6. Step 6: Final answer
    x = 84,857,522.40

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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.