Home / 663,655,460,703.05-915,834,789,023.35-370,684,659,045.35

Finding the Fourth Proportional to 663,655,460,703.05, 915,834,789,023.35 and 370,684,659,045.35

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Solution

The fourth proportional to 663,655,460,703.05, 915,834,789,023.35 and 370,684,659,045.35 is: 511,539,385,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,655,460,703.05 : 915,834,789,023.35 = 370,684,659,045.35 : x
  2. Step 2: Convert to fraction form
    663,655,460,703.05/915,834,789,023.35 = 370,684,659,045.35/x
  3. Step 3: Cross multiply
    663,655,460,703.05x = 915,834,789,023.35 × 370,684,659,045.35
  4. Step 4: Simplify right side
    663,655,460,703.05x = 339,485,906,510,990,498,856,960
  5. Step 5: Solve for x
    x = 339,485,906,510,990,498,856,960/663,655,460,703.05
  6. Step 6: Final answer
    x = 511,539,385,438.57

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Double scale
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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.