Home / 15,346,583,121.40-21,178,317,528.97-8,663,579,686.15

Finding the Fourth Proportional to 15,346,583,121.40, 21,178,317,528.97 and 8,663,579,686.15

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Solution

The fourth proportional to 15,346,583,121.40, 21,178,317,528.97 and 8,663,579,686.15 is: 11,955,758,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346,583,121.40 : 21,178,317,528.97 = 8,663,579,686.15 : x
  2. Step 2: Convert to fraction form
    15,346,583,121.40/21,178,317,528.97 = 8,663,579,686.15/x
  3. Step 3: Cross multiply
    15,346,583,121.40x = 21,178,317,528.97 × 8,663,579,686.15
  4. Step 4: Simplify right side
    15,346,583,121.40x = 183,480,041,530,739,982,336
  5. Step 5: Solve for x
    x = 183,480,041,530,739,982,336/15,346,583,121.40
  6. Step 6: Final answer
    x = 11,955,758,495.51

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Double scale
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1.5x scale

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.