Home / 102,458,639.40-141,392,499.66-55,415,765.40

Finding the Fourth Proportional to 102,458,639.40, 141,392,499.66 and 55,415,765.40

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Solution

The fourth proportional to 102,458,639.40, 141,392,499.66 and 55,415,765.40 is: 76,473,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,458,639.40 : 141,392,499.66 = 55,415,765.40 : x
  2. Step 2: Convert to fraction form
    102,458,639.40/141,392,499.66 = 55,415,765.40/x
  3. Step 3: Cross multiply
    102,458,639.40x = 141,392,499.66 × 55,415,765.40
  4. Step 4: Simplify right side
    102,458,639.40x = 7,835,373,590,478,139
  5. Step 5: Solve for x
    x = 7,835,373,590,478,139/102,458,639.40
  6. Step 6: Final answer
    x = 76,473,527.62

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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.