Home / 867,143,776.90-1,300,507,399.20-400,356,711.04

Finding the Fourth Proportional to 867,143,776.90, 1,300,507,399.20 and 400,356,711.04

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Solution

The fourth proportional to 867,143,776.90, 1,300,507,399.20 and 400,356,711.04 is: 600,438,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,143,776.90 : 1,300,507,399.20 = 400,356,711.04 : x
  2. Step 2: Convert to fraction form
    867,143,776.90/1,300,507,399.20 = 400,356,711.04/x
  3. Step 3: Cross multiply
    867,143,776.90x = 1,300,507,399.20 × 400,356,711.04
  4. Step 4: Simplify right side
    867,143,776.90x = 520,666,865,026,896,384
  5. Step 5: Solve for x
    x = 520,666,865,026,896,384/867,143,776.90
  6. Step 6: Final answer
    x = 600,438,910.94

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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.