Home / 127,482,456.20-191,081,966.70-70,015,969.40

Finding the Fourth Proportional to 127,482,456.20, 191,081,966.70 and 70,015,969.40

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Solution

The fourth proportional to 127,482,456.20, 191,081,966.70 and 70,015,969.40 is: 104,946,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,482,456.20 : 191,081,966.70 = 70,015,969.40 : x
  2. Step 2: Convert to fraction form
    127,482,456.20/191,081,966.70 = 70,015,969.40/x
  3. Step 3: Cross multiply
    127,482,456.20x = 191,081,966.70 × 70,015,969.40
  4. Step 4: Simplify right side
    127,482,456.20x = 13,378,789,133,359,020
  5. Step 5: Solve for x
    x = 13,378,789,133,359,020/127,482,456.20
  6. Step 6: Final answer
    x = 104,946,119.90

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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.