Home / 724,367,998.40-1,086,693,715.20-309,844,018.40

Finding the Fourth Proportional to 724,367,998.40, 1,086,693,715.20 and 309,844,018.40

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Solution

The fourth proportional to 724,367,998.40, 1,086,693,715.20 and 309,844,018.40 is: 464,826,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,367,998.40 : 1,086,693,715.20 = 309,844,018.40 : x
  2. Step 2: Convert to fraction form
    724,367,998.40/1,086,693,715.20 = 309,844,018.40/x
  3. Step 3: Cross multiply
    724,367,998.40x = 1,086,693,715.20 × 309,844,018.40
  4. Step 4: Simplify right side
    724,367,998.40x = 336,705,547,487,593,152
  5. Step 5: Solve for x
    x = 336,705,547,487,593,152/724,367,998.40
  6. Step 6: Final answer
    x = 464,826,646.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.