Home / 867,143,775.90-1,300,507,397.70-400,356,710.04

Finding the Fourth Proportional to 867,143,775.90, 1,300,507,397.70 and 400,356,710.04

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Solution

The fourth proportional to 867,143,775.90, 1,300,507,397.70 and 400,356,710.04 is: 600,438,909.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,143,775.90 : 1,300,507,397.70 = 400,356,710.04 : x
  2. Step 2: Convert to fraction form
    867,143,775.90/1,300,507,397.70 = 400,356,710.04/x
  3. Step 3: Cross multiply
    867,143,775.90x = 1,300,507,397.70 × 400,356,710.04
  4. Step 4: Simplify right side
    867,143,775.90x = 520,666,863,125,853,888
  5. Step 5: Solve for x
    x = 520,666,863,125,853,888/867,143,775.90
  6. Step 6: Final answer
    x = 600,438,909.44

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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.