Home / 354,018,955.60-531,028,433.40-331,344,139.60

Finding the Fourth Proportional to 354,018,955.60, 531,028,433.40 and 331,344,139.60

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Solution

The fourth proportional to 354,018,955.60, 531,028,433.40 and 331,344,139.60 is: 497,016,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,018,955.60 : 531,028,433.40 = 331,344,139.60 : x
  2. Step 2: Convert to fraction form
    354,018,955.60/531,028,433.40 = 331,344,139.60/x
  3. Step 3: Cross multiply
    354,018,955.60x = 531,028,433.40 × 331,344,139.60
  4. Step 4: Simplify right side
    354,018,955.60x = 175,953,159,368,058,912
  5. Step 5: Solve for x
    x = 175,953,159,368,058,912/354,018,955.60
  6. Step 6: Final answer
    x = 497,016,209.40

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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.