Home / 931,176,230.40-1,396,260,460.80-385,972,876.80

Finding the Fourth Proportional to 931,176,230.40, 1,396,260,460.80 and 385,972,876.80

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Solution

The fourth proportional to 931,176,230.40, 1,396,260,460.80 and 385,972,876.80 is: 578,750,454.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,176,230.40 : 1,396,260,460.80 = 385,972,876.80 : x
  2. Step 2: Convert to fraction form
    931,176,230.40/1,396,260,460.80 = 385,972,876.80/x
  3. Step 3: Cross multiply
    931,176,230.40x = 1,396,260,460.80 × 385,972,876.80
  4. Step 4: Simplify right side
    931,176,230.40x = 538,918,666,817,069,632
  5. Step 5: Solve for x
    x = 538,918,666,817,069,632/931,176,230.40
  6. Step 6: Final answer
    x = 578,750,454.77

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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.