Home / 115,916,928.60-173,875,392.90-87,006,538.20

Finding the Fourth Proportional to 115,916,928.60, 173,875,392.90 and 87,006,538.20

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Solution

The fourth proportional to 115,916,928.60, 173,875,392.90 and 87,006,538.20 is: 130,509,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916,928.60 : 173,875,392.90 = 87,006,538.20 : x
  2. Step 2: Convert to fraction form
    115,916,928.60/173,875,392.90 = 87,006,538.20/x
  3. Step 3: Cross multiply
    115,916,928.60x = 173,875,392.90 × 87,006,538.20
  4. Step 4: Simplify right side
    115,916,928.60x = 15,128,296,014,393,860
  5. Step 5: Solve for x
    x = 15,128,296,014,393,860/115,916,928.60
  6. Step 6: Final answer
    x = 130,509,807.30

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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.