Home / 612,712,972.49-845,428,260.45-365,217,355.85

Finding the Fourth Proportional to 612,712,972.49, 845,428,260.45 and 365,217,355.85

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Solution

The fourth proportional to 612,712,972.49, 845,428,260.45 and 365,217,355.85 is: 503,931,021.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,712,972.49 : 845,428,260.45 = 365,217,355.85 : x
  2. Step 2: Convert to fraction form
    612,712,972.49/845,428,260.45 = 365,217,355.85/x
  3. Step 3: Cross multiply
    612,712,972.49x = 845,428,260.45 × 365,217,355.85
  4. Step 4: Simplify right side
    612,712,972.49x = 308,765,073,842,414,144
  5. Step 5: Solve for x
    x = 308,765,073,842,414,144/612,712,972.49
  6. Step 6: Final answer
    x = 503,931,021.06

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1.5x scale

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.