Home / 1,242,697,966.47-1,714,959,551.43-678,219,053.27

Finding the Fourth Proportional to 1,242,697,966.47, 1,714,959,551.43 and 678,219,053.27

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Solution

The fourth proportional to 1,242,697,966.47, 1,714,959,551.43 and 678,219,053.27 is: 935,962,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,697,966.47 : 1,714,959,551.43 = 678,219,053.27 : x
  2. Step 2: Convert to fraction form
    1,242,697,966.47/1,714,959,551.43 = 678,219,053.27/x
  3. Step 3: Cross multiply
    1,242,697,966.47x = 1,714,959,551.43 × 678,219,053.27
  4. Step 4: Simplify right side
    1,242,697,966.47x = 1,163,118,243,358,623,744
  5. Step 5: Solve for x
    x = 1,163,118,243,358,623,744/1,242,697,966.47
  6. Step 6: Final answer
    x = 935,962,136.21

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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.