Home / 663,141,088,809.70-915,134,695,471.60-358,646,744,790.54

Finding the Fourth Proportional to 663,141,088,809.70, 915,134,695,471.60 and 358,646,744,790.54

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Solution

The fourth proportional to 663,141,088,809.70, 915,134,695,471.60 and 358,646,744,790.54 is: 494,932,503,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,141,088,809.70 : 915,134,695,471.60 = 358,646,744,790.54 : x
  2. Step 2: Convert to fraction form
    663,141,088,809.70/915,134,695,471.60 = 358,646,744,790.54/x
  3. Step 3: Cross multiply
    663,141,088,809.70x = 915,134,695,471.60 × 358,646,744,790.54
  4. Step 4: Simplify right side
    663,141,088,809.70x = 328,210,079,575,771,466,170,368
  5. Step 5: Solve for x
    x = 328,210,079,575,771,466,170,368/663,141,088,809.70
  6. Step 6: Final answer
    x = 494,932,503,978.74

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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.