Home / 989,752,006.40-1,365,813,586.40-593,493,653.57

Finding the Fourth Proportional to 989,752,006.40, 1,365,813,586.40 and 593,493,653.57

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Solution

The fourth proportional to 989,752,006.40, 1,365,813,586.40 and 593,493,653.57 is: 818,994,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,752,006.40 : 1,365,813,586.40 = 593,493,653.57 : x
  2. Step 2: Convert to fraction form
    989,752,006.40/1,365,813,586.40 = 593,493,653.57/x
  3. Step 3: Cross multiply
    989,752,006.40x = 1,365,813,586.40 × 593,493,653.57
  4. Step 4: Simplify right side
    989,752,006.40x = 810,601,695,478,284,416
  5. Step 5: Solve for x
    x = 810,601,695,478,284,416/989,752,006.40
  6. Step 6: Final answer
    x = 818,994,748.42

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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.