Home / 729,095,112.75-1,006,160,703.44-399,063,165.87

Finding the Fourth Proportional to 729,095,112.75, 1,006,160,703.44 and 399,063,165.87

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Solution

The fourth proportional to 729,095,112.75, 1,006,160,703.44 and 399,063,165.87 is: 550,712,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,095,112.75 : 1,006,160,703.44 = 399,063,165.87 : x
  2. Step 2: Convert to fraction form
    729,095,112.75/1,006,160,703.44 = 399,063,165.87/x
  3. Step 3: Cross multiply
    729,095,112.75x = 1,006,160,703.44 × 399,063,165.87
  4. Step 4: Simplify right side
    729,095,112.75x = 401,521,675,686,757,248
  5. Step 5: Solve for x
    x = 401,521,675,686,757,248/729,095,112.75
  6. Step 6: Final answer
    x = 550,712,340.08

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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.