Home / 166,464,047.70-249,696,071.55-85,842,479.70

Finding the Fourth Proportional to 166,464,047.70, 249,696,071.55 and 85,842,479.70

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Solution

The fourth proportional to 166,464,047.70, 249,696,071.55 and 85,842,479.70 is: 128,763,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,464,047.70 : 249,696,071.55 = 85,842,479.70 : x
  2. Step 2: Convert to fraction form
    166,464,047.70/249,696,071.55 = 85,842,479.70/x
  3. Step 3: Cross multiply
    166,464,047.70x = 249,696,071.55 × 85,842,479.70
  4. Step 4: Simplify right side
    166,464,047.70x = 21,434,529,953,200,624
  5. Step 5: Solve for x
    x = 21,434,529,953,200,624/166,464,047.70
  6. Step 6: Final answer
    x = 128,763,719.55

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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.