Home / 15,729,071,357.46-21,711,291,286.42-12,519,868,055.60

Finding the Fourth Proportional to 15,729,071,357.46, 21,711,291,286.42 and 12,519,868,055.60

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Solution

The fourth proportional to 15,729,071,357.46, 21,711,291,286.42 and 12,519,868,055.60 is: 17,281,535,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,729,071,357.46 : 21,711,291,286.42 = 12,519,868,055.60 : x
  2. Step 2: Convert to fraction form
    15,729,071,357.46/21,711,291,286.42 = 12,519,868,055.60/x
  3. Step 3: Cross multiply
    15,729,071,357.46x = 21,711,291,286.42 × 12,519,868,055.60
  4. Step 4: Simplify right side
    15,729,071,357.46x = 271,822,502,222,676,361,216
  5. Step 5: Solve for x
    x = 271,822,502,222,676,361,216/15,729,071,357.46
  6. Step 6: Final answer
    x = 17,281,535,320.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.