Home / 727,681,200.30-1,091,521,800.45-210,128,525.10

Finding the Fourth Proportional to 727,681,200.30, 1,091,521,800.45 and 210,128,525.10

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Solution

The fourth proportional to 727,681,200.30, 1,091,521,800.45 and 210,128,525.10 is: 315,192,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,681,200.30 : 1,091,521,800.45 = 210,128,525.10 : x
  2. Step 2: Convert to fraction form
    727,681,200.30/1,091,521,800.45 = 210,128,525.10/x
  3. Step 3: Cross multiply
    727,681,200.30x = 1,091,521,800.45 × 210,128,525.10
  4. Step 4: Simplify right side
    727,681,200.30x = 229,359,866,043,055,008
  5. Step 5: Solve for x
    x = 229,359,866,043,055,008/727,681,200.30
  6. Step 6: Final answer
    x = 315,192,787.65

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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.