Home / 86,938,485.37-119,977,987.05-47,781,650.05

Finding the Fourth Proportional to 86,938,485.37, 119,977,987.05 and 47,781,650.05

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Solution

The fourth proportional to 86,938,485.37, 119,977,987.05 and 47,781,650.05 is: 65,940,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,485.37 : 119,977,987.05 = 47,781,650.05 : x
  2. Step 2: Convert to fraction form
    86,938,485.37/119,977,987.05 = 47,781,650.05/x
  3. Step 3: Cross multiply
    86,938,485.37x = 119,977,987.05 × 47,781,650.05
  4. Step 4: Simplify right side
    86,938,485.37x = 5,732,746,190,926,531
  5. Step 5: Solve for x
    x = 5,732,746,190,926,531/86,938,485.37
  6. Step 6: Final answer
    x = 65,940,258.41

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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.