Home / 706,077,007.20-1,059,115,510.80-399,966,991.20

Finding the Fourth Proportional to 706,077,007.20, 1,059,115,510.80 and 399,966,991.20

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Solution

The fourth proportional to 706,077,007.20, 1,059,115,510.80 and 399,966,991.20 is: 599,950,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,077,007.20 : 1,059,115,510.80 = 399,966,991.20 : x
  2. Step 2: Convert to fraction form
    706,077,007.20/1,059,115,510.80 = 399,966,991.20/x
  3. Step 3: Cross multiply
    706,077,007.20x = 1,059,115,510.80 × 399,966,991.20
  4. Step 4: Simplify right side
    706,077,007.20x = 423,611,244,187,927,104
  5. Step 5: Solve for x
    x = 423,611,244,187,927,104/706,077,007.20
  6. Step 6: Final answer
    x = 599,950,486.80

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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.