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Finding the Fourth Proportional to 84,796,319.80, 127,194,479.70 and 70,925,709.70

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Solution

The fourth proportional to 84,796,319.80, 127,194,479.70 and 70,925,709.70 is: 106,388,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,796,319.80 : 127,194,479.70 = 70,925,709.70 : x
  2. Step 2: Convert to fraction form
    84,796,319.80/127,194,479.70 = 70,925,709.70/x
  3. Step 3: Cross multiply
    84,796,319.80x = 127,194,479.70 × 70,925,709.70
  4. Step 4: Simplify right side
    84,796,319.80x = 9,021,358,742,644,744
  5. Step 5: Solve for x
    x = 9,021,358,742,644,744/84,796,319.80
  6. Step 6: Final answer
    x = 106,388,564.55

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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.