Home / 663,655,460,703.20-915,834,789,023.45-370,684,659,045.45

Finding the Fourth Proportional to 663,655,460,703.20, 915,834,789,023.45 and 370,684,659,045.45

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Solution

The fourth proportional to 663,655,460,703.20, 915,834,789,023.45 and 370,684,659,045.45 is: 511,539,385,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,655,460,703.20 : 915,834,789,023.45 = 370,684,659,045.45 : x
  2. Step 2: Convert to fraction form
    663,655,460,703.20/915,834,789,023.45 = 370,684,659,045.45/x
  3. Step 3: Cross multiply
    663,655,460,703.20x = 915,834,789,023.45 × 370,684,659,045.45
  4. Step 4: Simplify right side
    663,655,460,703.20x = 339,485,906,511,119,213,658,112
  5. Step 5: Solve for x
    x = 339,485,906,511,119,213,658,112/663,655,460,703.20
  6. Step 6: Final answer
    x = 511,539,385,438.65

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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.