Home / 766,626,957.11-1,058,817,876.21-515,295,004.29

Finding the Fourth Proportional to 766,626,957.11, 1,058,817,876.21 and 515,295,004.29

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Solution

The fourth proportional to 766,626,957.11, 1,058,817,876.21 and 515,295,004.29 is: 711,693,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,626,957.11 : 1,058,817,876.21 = 515,295,004.29 : x
  2. Step 2: Convert to fraction form
    766,626,957.11/1,058,817,876.21 = 515,295,004.29/x
  3. Step 3: Cross multiply
    766,626,957.11x = 1,058,817,876.21 × 515,295,004.29
  4. Step 4: Simplify right side
    766,626,957.11x = 545,603,562,063,960,704
  5. Step 5: Solve for x
    x = 545,603,562,063,960,704/766,626,957.11
  6. Step 6: Final answer
    x = 711,693,682.31

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1.5x scale

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.