Home / 917,804,816.09-1,376,705,503.59-287,585,123.23

Finding the Fourth Proportional to 917,804,816.09, 1,376,705,503.59 and 287,585,123.23

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Solution

The fourth proportional to 917,804,816.09, 1,376,705,503.59 and 287,585,123.23 is: 431,377,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,804,816.09 : 1,376,705,503.59 = 287,585,123.23 : x
  2. Step 2: Convert to fraction form
    917,804,816.09/1,376,705,503.59 = 287,585,123.23/x
  3. Step 3: Cross multiply
    917,804,816.09x = 1,376,705,503.59 × 287,585,123.23
  4. Step 4: Simplify right side
    917,804,816.09x = 395,920,021,901,349,376
  5. Step 5: Solve for x
    x = 395,920,021,901,349,376/917,804,816.09
  6. Step 6: Final answer
    x = 431,377,145.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.