Home / 278,490,545.96-384,327,325.22-166,999,538.57

Finding the Fourth Proportional to 278,490,545.96, 384,327,325.22 and 166,999,538.57

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Solution

The fourth proportional to 278,490,545.96, 384,327,325.22 and 166,999,538.57 is: 230,465,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,490,545.96 : 384,327,325.22 = 166,999,538.57 : x
  2. Step 2: Convert to fraction form
    278,490,545.96/384,327,325.22 = 166,999,538.57/x
  3. Step 3: Cross multiply
    278,490,545.96x = 384,327,325.22 × 166,999,538.57
  4. Step 4: Simplify right side
    278,490,545.96x = 64,182,485,968,825,688
  5. Step 5: Solve for x
    x = 64,182,485,968,825,688/278,490,545.96
  6. Step 6: Final answer
    x = 230,465,582.77

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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.