Home / 305,584,901.76-421,712,539.20-166,359,665.28

Finding the Fourth Proportional to 305,584,901.76, 421,712,539.20 and 166,359,665.28

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Solution

The fourth proportional to 305,584,901.76, 421,712,539.20 and 166,359,665.28 is: 229,579,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,584,901.76 : 421,712,539.20 = 166,359,665.28 : x
  2. Step 2: Convert to fraction form
    305,584,901.76/421,712,539.20 = 166,359,665.28/x
  3. Step 3: Cross multiply
    305,584,901.76x = 421,712,539.20 × 166,359,665.28
  4. Step 4: Simplify right side
    305,584,901.76x = 70,155,956,865,690,880
  5. Step 5: Solve for x
    x = 70,155,956,865,690,880/305,584,901.76
  6. Step 6: Final answer
    x = 229,579,264.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.