Home / 871,025,919.90-1,306,549,507.05-257,622,542.70

Finding the Fourth Proportional to 871,025,919.90, 1,306,549,507.05 and 257,622,542.70

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Solution

The fourth proportional to 871,025,919.90, 1,306,549,507.05 and 257,622,542.70 is: 386,436,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,025,919.90 : 1,306,549,507.05 = 257,622,542.70 : x
  2. Step 2: Convert to fraction form
    871,025,919.90/1,306,549,507.05 = 257,622,542.70/x
  3. Step 3: Cross multiply
    871,025,919.90x = 1,306,549,507.05 × 257,622,542.70
  4. Step 4: Simplify right side
    871,025,919.90x = 336,596,606,169,652,544
  5. Step 5: Solve for x
    x = 336,596,606,169,652,544/871,025,919.90
  6. Step 6: Final answer
    x = 386,436,957.25

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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.