Home / 812,270,478.13-1,218,521,406.76-252,080,707.03

Finding the Fourth Proportional to 812,270,478.13, 1,218,521,406.76 and 252,080,707.03

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Solution

The fourth proportional to 812,270,478.13, 1,218,521,406.76 and 252,080,707.03 is: 378,156,963.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,270,478.13 : 1,218,521,406.76 = 252,080,707.03 : x
  2. Step 2: Convert to fraction form
    812,270,478.13/1,218,521,406.76 = 252,080,707.03/x
  3. Step 3: Cross multiply
    812,270,478.13x = 1,218,521,406.76 × 252,080,707.03
  4. Step 4: Simplify right side
    812,270,478.13x = 307,165,737,743,574,528
  5. Step 5: Solve for x
    x = 307,165,737,743,574,528/812,270,478.13
  6. Step 6: Final answer
    x = 378,156,963.74

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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.