Home / 21,210,263,962.57-29,271,470,754.81-11,694,786,285.52

Finding the Fourth Proportional to 21,210,263,962.57, 29,271,470,754.81 and 11,694,786,285.52

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Solution

The fourth proportional to 21,210,263,962.57, 29,271,470,754.81 and 11,694,786,285.52 is: 16,139,525,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210,263,962.57 : 29,271,470,754.81 = 11,694,786,285.52 : x
  2. Step 2: Convert to fraction form
    21,210,263,962.57/29,271,470,754.81 = 11,694,786,285.52/x
  3. Step 3: Cross multiply
    21,210,263,962.57x = 29,271,470,754.81 × 11,694,786,285.52
  4. Step 4: Simplify right side
    21,210,263,962.57x = 342,323,594,740,351,762,432
  5. Step 5: Solve for x
    x = 342,323,594,740,351,762,432/21,210,263,962.57
  6. Step 6: Final answer
    x = 16,139,525,436.57

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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.