Home / 309,696,412.79-464,532,020.64-76,521,252.63

Finding the Fourth Proportional to 309,696,412.79, 464,532,020.64 and 76,521,252.63

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Solution

The fourth proportional to 309,696,412.79, 464,532,020.64 and 76,521,252.63 is: 114,778,766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,696,412.79 : 464,532,020.64 = 76,521,252.63 : x
  2. Step 2: Convert to fraction form
    309,696,412.79/464,532,020.64 = 76,521,252.63/x
  3. Step 3: Cross multiply
    309,696,412.79x = 464,532,020.64 × 76,521,252.63
  4. Step 4: Simplify right side
    309,696,412.79x = 35,546,572,106,117,812
  5. Step 5: Solve for x
    x = 35,546,572,106,117,812/309,696,412.79
  6. Step 6: Final answer
    x = 114,778,766.04

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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.