Home / 817,915,744,006.40-1,226,873,616,009.60-678,601,674,502.40

Finding the Fourth Proportional to 817,915,744,006.40, 1,226,873,616,009.60 and 678,601,674,502.40

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Solution

The fourth proportional to 817,915,744,006.40, 1,226,873,616,009.60 and 678,601,674,502.40 is: 1,017,902,511,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,915,744,006.40 : 1,226,873,616,009.60 = 678,601,674,502.40 : x
  2. Step 2: Convert to fraction form
    817,915,744,006.40/1,226,873,616,009.60 = 678,601,674,502.40/x
  3. Step 3: Cross multiply
    817,915,744,006.40x = 1,226,873,616,009.60 × 678,601,674,502.40
  4. Step 4: Simplify right side
    817,915,744,006.40x = 832,558,490,226,929,161,994,240
  5. Step 5: Solve for x
    x = 832,558,490,226,929,161,994,240/817,915,744,006.40
  6. Step 6: Final answer
    x = 1,017,902,511,753.60

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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.