Home / 15,755,420,070.54-21,742,414,694.91-8,521,475,621.58

Finding the Fourth Proportional to 15,755,420,070.54, 21,742,414,694.91 and 8,521,475,621.58

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Solution

The fourth proportional to 15,755,420,070.54, 21,742,414,694.91 and 8,521,475,621.58 is: 11,759,601,200.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755,420,070.54 : 21,742,414,694.91 = 8,521,475,621.58 : x
  2. Step 2: Convert to fraction form
    15,755,420,070.54/21,742,414,694.91 = 8,521,475,621.58/x
  3. Step 3: Cross multiply
    15,755,420,070.54x = 21,742,414,694.91 × 8,521,475,621.58
  4. Step 4: Simplify right side
    15,755,420,070.54x = 185,277,456,776,958,312,448
  5. Step 5: Solve for x
    x = 185,277,456,776,958,312,448/15,755,420,070.54
  6. Step 6: Final answer
    x = 11,759,601,200.57

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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.