Home / 1,091,573,215.88-1,637,180,446.05-391,920,510.56

Finding the Fourth Proportional to 1,091,573,215.88, 1,637,180,446.05 and 391,920,510.56

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Solution

The fourth proportional to 1,091,573,215.88, 1,637,180,446.05 and 391,920,510.56 is: 587,816,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,573,215.88 : 1,637,180,446.05 = 391,920,510.56 : x
  2. Step 2: Convert to fraction form
    1,091,573,215.88/1,637,180,446.05 = 391,920,510.56/x
  3. Step 3: Cross multiply
    1,091,573,215.88x = 1,637,180,446.05 × 391,920,510.56
  4. Step 4: Simplify right side
    1,091,573,215.88x = 641,644,596,286,578,688
  5. Step 5: Solve for x
    x = 641,644,596,286,578,688/1,091,573,215.88
  6. Step 6: Final answer
    x = 587,816,361.70

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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.