Home / 871,120,407.13-1,202,130,959.51-474,646,678.45

Finding the Fourth Proportional to 871,120,407.13, 1,202,130,959.51 and 474,646,678.45

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Solution

The fourth proportional to 871,120,407.13, 1,202,130,959.51 and 474,646,678.45 is: 655,004,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,120,407.13 : 1,202,130,959.51 = 474,646,678.45 : x
  2. Step 2: Convert to fraction form
    871,120,407.13/1,202,130,959.51 = 474,646,678.45/x
  3. Step 3: Cross multiply
    871,120,407.13x = 1,202,130,959.51 × 474,646,678.45
  4. Step 4: Simplify right side
    871,120,407.13x = 570,587,466,987,322,240
  5. Step 5: Solve for x
    x = 570,587,466,987,322,240/871,120,407.13
  6. Step 6: Final answer
    x = 655,004,132.98

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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.