Home / 115,919,617.60-173,879,426.40-87,009,227.20

Finding the Fourth Proportional to 115,919,617.60, 173,879,426.40 and 87,009,227.20

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Solution

The fourth proportional to 115,919,617.60, 173,879,426.40 and 87,009,227.20 is: 130,513,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,919,617.60 : 173,879,426.40 = 87,009,227.20 : x
  2. Step 2: Convert to fraction form
    115,919,617.60/173,879,426.40 = 87,009,227.20/x
  3. Step 3: Cross multiply
    115,919,617.60x = 173,879,426.40 × 87,009,227.20
  4. Step 4: Simplify right side
    115,919,617.60x = 15,129,114,517,043,280
  5. Step 5: Solve for x
    x = 15,129,114,517,043,280/115,919,617.60
  6. Step 6: Final answer
    x = 130,513,840.80

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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.