Home / 663,141,088,809.72-915,134,695,471.62-358,646,744,790.54

Finding the Fourth Proportional to 663,141,088,809.72, 915,134,695,471.62 and 358,646,744,790.54

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Solution

The fourth proportional to 663,141,088,809.72, 915,134,695,471.62 and 358,646,744,790.54 is: 494,932,503,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,141,088,809.72 : 915,134,695,471.62 = 358,646,744,790.54 : x
  2. Step 2: Convert to fraction form
    663,141,088,809.72/915,134,695,471.62 = 358,646,744,790.54/x
  3. Step 3: Cross multiply
    663,141,088,809.72x = 915,134,695,471.62 × 358,646,744,790.54
  4. Step 4: Simplify right side
    663,141,088,809.72x = 328,210,079,575,778,646,818,816
  5. Step 5: Solve for x
    x = 328,210,079,575,778,646,818,816/663,141,088,809.72
  6. Step 6: Final answer
    x = 494,932,503,978.73

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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.