Home / 727,680,656.30-1,091,520,984.45-210,127,981.10

Finding the Fourth Proportional to 727,680,656.30, 1,091,520,984.45 and 210,127,981.10

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Solution

The fourth proportional to 727,680,656.30, 1,091,520,984.45 and 210,127,981.10 is: 315,191,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,680,656.30 : 1,091,520,984.45 = 210,127,981.10 : x
  2. Step 2: Convert to fraction form
    727,680,656.30/1,091,520,984.45 = 210,127,981.10/x
  3. Step 3: Cross multiply
    727,680,656.30x = 1,091,520,984.45 × 210,127,981.10
  4. Step 4: Simplify right side
    727,680,656.30x = 229,359,100,790,763,008
  5. Step 5: Solve for x
    x = 229,359,100,790,763,008/727,680,656.30
  6. Step 6: Final answer
    x = 315,191,971.65

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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.