Home / 931,175,953.65-1,396,260,045.68-385,972,600.05

Finding the Fourth Proportional to 931,175,953.65, 1,396,260,045.68 and 385,972,600.05

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Solution

The fourth proportional to 931,175,953.65, 1,396,260,045.68 and 385,972,600.05 is: 578,750,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,175,953.65 : 1,396,260,045.68 = 385,972,600.05 : x
  2. Step 2: Convert to fraction form
    931,175,953.65/1,396,260,045.68 = 385,972,600.05/x
  3. Step 3: Cross multiply
    931,175,953.65x = 1,396,260,045.68 × 385,972,600.05
  4. Step 4: Simplify right side
    931,175,953.65x = 538,918,120,175,111,488
  5. Step 5: Solve for x
    x = 538,918,120,175,111,488/931,175,953.65
  6. Step 6: Final answer
    x = 578,750,039.73

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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.