Home / 21,143,312.80-29,536,865-21,143,312.80

Finding the Fourth Proportional to 21,143,312.80, 29,536,865 and 21,143,312.80

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Solution

The fourth proportional to 21,143,312.80, 29,536,865 and 21,143,312.80 is: 29,536,865

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,312.80 : 29,536,865 = 21,143,312.80 : x
  2. Step 2: Convert to fraction form
    21,143,312.80/29,536,865 = 21,143,312.80/x
  3. Step 3: Cross multiply
    21,143,312.80x = 29,536,865 × 21,143,312.80
  4. Step 4: Simplify right side
    21,143,312.80x = 624,507,175,826,372
  5. Step 5: Solve for x
    x = 624,507,175,826,372/21,143,312.80
  6. Step 6: Final answer
    x = 29,536,865

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.