Home / 931,176,005.40-1,396,260,123.30-385,972,651.80

Finding the Fourth Proportional to 931,176,005.40, 1,396,260,123.30 and 385,972,651.80

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Solution

The fourth proportional to 931,176,005.40, 1,396,260,123.30 and 385,972,651.80 is: 578,750,117.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,176,005.40 : 1,396,260,123.30 = 385,972,651.80 : x
  2. Step 2: Convert to fraction form
    931,176,005.40/1,396,260,123.30 = 385,972,651.80/x
  3. Step 3: Cross multiply
    931,176,005.40x = 1,396,260,123.30 × 385,972,651.80
  4. Step 4: Simplify right side
    931,176,005.40x = 538,918,222,392,695,936
  5. Step 5: Solve for x
    x = 538,918,222,392,695,936/931,176,005.40
  6. Step 6: Final answer
    x = 578,750,117.34

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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.