Home / 85,961,360.40-128,942,040.60-25,376,989.20

Finding the Fourth Proportional to 85,961,360.40, 128,942,040.60 and 25,376,989.20

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Solution

The fourth proportional to 85,961,360.40, 128,942,040.60 and 25,376,989.20 is: 38,065,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,961,360.40 : 128,942,040.60 = 25,376,989.20 : x
  2. Step 2: Convert to fraction form
    85,961,360.40/128,942,040.60 = 25,376,989.20/x
  3. Step 3: Cross multiply
    85,961,360.40x = 128,942,040.60 × 25,376,989.20
  4. Step 4: Simplify right side
    85,961,360.40x = 3,272,160,771,732,161.50
  5. Step 5: Solve for x
    x = 3,272,160,771,732,161.50/85,961,360.40
  6. Step 6: Final answer
    x = 38,065,483.80

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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.