Home / 143,271,433.10-214,411,138.05-85,804,946.30

Finding the Fourth Proportional to 143,271,433.10, 214,411,138.05 and 85,804,946.30

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Solution

The fourth proportional to 143,271,433.10, 214,411,138.05 and 85,804,946.30 is: 128,410,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271,433.10 : 214,411,138.05 = 85,804,946.30 : x
  2. Step 2: Convert to fraction form
    143,271,433.10/214,411,138.05 = 85,804,946.30/x
  3. Step 3: Cross multiply
    143,271,433.10x = 214,411,138.05 × 85,804,946.30
  4. Step 4: Simplify right side
    143,271,433.10x = 18,397,536,186,502,136
  5. Step 5: Solve for x
    x = 18,397,536,186,502,136/143,271,433.10
  6. Step 6: Final answer
    x = 128,410,359.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.