Home / 278,490,352.16-384,327,057.84-166,999,344.76

Finding the Fourth Proportional to 278,490,352.16, 384,327,057.84 and 166,999,344.76

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Solution

The fourth proportional to 278,490,352.16, 384,327,057.84 and 166,999,344.76 is: 230,465,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,490,352.16 : 384,327,057.84 = 166,999,344.76 : x
  2. Step 2: Convert to fraction form
    278,490,352.16/384,327,057.84 = 166,999,344.76/x
  3. Step 3: Cross multiply
    278,490,352.16x = 384,327,057.84 × 166,999,344.76
  4. Step 4: Simplify right side
    278,490,352.16x = 64,182,366,832,818,616
  5. Step 5: Solve for x
    x = 64,182,366,832,818,616/278,490,352.16
  6. Step 6: Final answer
    x = 230,465,315.35

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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.