Home / 612,712,970.49-845,428,257.69-365,217,353.85

Finding the Fourth Proportional to 612,712,970.49, 845,428,257.69 and 365,217,353.85

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Solution

The fourth proportional to 612,712,970.49, 845,428,257.69 and 365,217,353.85 is: 503,931,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,712,970.49 : 845,428,257.69 = 365,217,353.85 : x
  2. Step 2: Convert to fraction form
    612,712,970.49/845,428,257.69 = 365,217,353.85/x
  3. Step 3: Cross multiply
    612,712,970.49x = 845,428,257.69 × 365,217,353.85
  4. Step 4: Simplify right side
    612,712,970.49x = 308,765,071,143,557,760
  5. Step 5: Solve for x
    x = 308,765,071,143,557,760/612,712,970.49
  6. Step 6: Final answer
    x = 503,931,018.30

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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.