Home / 766,415,491.21-1,057,653,841.23-413,991,637.63

Finding the Fourth Proportional to 766,415,491.21, 1,057,653,841.23 and 413,991,637.63

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Solution

The fourth proportional to 766,415,491.21, 1,057,653,841.23 and 413,991,637.63 is: 571,308,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,415,491.21 : 1,057,653,841.23 = 413,991,637.63 : x
  2. Step 2: Convert to fraction form
    766,415,491.21/1,057,653,841.23 = 413,991,637.63/x
  3. Step 3: Cross multiply
    766,415,491.21x = 1,057,653,841.23 × 413,991,637.63
  4. Step 4: Simplify right side
    766,415,491.21x = 437,859,845,773,823,616
  5. Step 5: Solve for x
    x = 437,859,845,773,823,616/766,415,491.21
  6. Step 6: Final answer
    x = 571,308,710.22

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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.