Home / 85,546,935.80-128,225,925.30-47,235,944.60

Finding the Fourth Proportional to 85,546,935.80, 128,225,925.30 and 47,235,944.60

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Solution

The fourth proportional to 85,546,935.80, 128,225,925.30 and 47,235,944.60 is: 70,801,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,546,935.80 : 128,225,925.30 = 47,235,944.60 : x
  2. Step 2: Convert to fraction form
    85,546,935.80/128,225,925.30 = 47,235,944.60/x
  3. Step 3: Cross multiply
    85,546,935.80x = 128,225,925.30 × 47,235,944.60
  4. Step 4: Simplify right side
    85,546,935.80x = 6,056,872,703,754,538
  5. Step 5: Solve for x
    x = 6,056,872,703,754,538/85,546,935.80
  6. Step 6: Final answer
    x = 70,801,749.32

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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.