Home / 339,982,446.60-509,973,669.90-312,772,667.40

Finding the Fourth Proportional to 339,982,446.60, 509,973,669.90 and 312,772,667.40

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Solution

The fourth proportional to 339,982,446.60, 509,973,669.90 and 312,772,667.40 is: 469,159,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,982,446.60 : 509,973,669.90 = 312,772,667.40 : x
  2. Step 2: Convert to fraction form
    339,982,446.60/509,973,669.90 = 312,772,667.40/x
  3. Step 3: Cross multiply
    339,982,446.60x = 509,973,669.90 × 312,772,667.40
  4. Step 4: Simplify right side
    339,982,446.60x = 159,505,825,038,390,080
  5. Step 5: Solve for x
    x = 159,505,825,038,390,080/339,982,446.60
  6. Step 6: Final answer
    x = 469,159,001.10

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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.