Home / 729,244,362.60-1,006,357,269.51-399,219,501.60

Finding the Fourth Proportional to 729,244,362.60, 1,006,357,269.51 and 399,219,501.60

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Solution

The fourth proportional to 729,244,362.60, 1,006,357,269.51 and 399,219,501.60 is: 550,922,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,244,362.60 : 1,006,357,269.51 = 399,219,501.60 : x
  2. Step 2: Convert to fraction form
    729,244,362.60/1,006,357,269.51 = 399,219,501.60/x
  3. Step 3: Cross multiply
    729,244,362.60x = 1,006,357,269.51 × 399,219,501.60
  4. Step 4: Simplify right side
    729,244,362.60x = 401,757,447,565,319,104
  5. Step 5: Solve for x
    x = 401,757,447,565,319,104/729,244,362.60
  6. Step 6: Final answer
    x = 550,922,939.10

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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.