Home / 612,712,979.36-845,428,269.89-365,217,362.72

Finding the Fourth Proportional to 612,712,979.36, 845,428,269.89 and 365,217,362.72

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Solution

The fourth proportional to 612,712,979.36, 845,428,269.89 and 365,217,362.72 is: 503,931,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,712,979.36 : 845,428,269.89 = 365,217,362.72 : x
  2. Step 2: Convert to fraction form
    612,712,979.36/845,428,269.89 = 365,217,362.72/x
  3. Step 3: Cross multiply
    612,712,979.36x = 845,428,269.89 × 365,217,362.72
  4. Step 4: Simplify right side
    612,712,979.36x = 308,765,083,092,104,960
  5. Step 5: Solve for x
    x = 308,765,083,092,104,960/612,712,979.36
  6. Step 6: Final answer
    x = 503,931,030.51

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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.