Home / 871,120,409-1,202,130,962.10-474,646,680.32

Finding the Fourth Proportional to 871,120,409, 1,202,130,962.10 and 474,646,680.32

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Solution

The fourth proportional to 871,120,409, 1,202,130,962.10 and 474,646,680.32 is: 655,004,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,120,409 : 1,202,130,962.10 = 474,646,680.32 : x
  2. Step 2: Convert to fraction form
    871,120,409/1,202,130,962.10 = 474,646,680.32/x
  3. Step 3: Cross multiply
    871,120,409x = 1,202,130,962.10 × 474,646,680.32
  4. Step 4: Simplify right side
    871,120,409x = 570,587,470,470,652,672
  5. Step 5: Solve for x
    x = 570,587,470,470,652,672/871,120,409
  6. Step 6: Final answer
    x = 655,004,135.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.