Home / 871,319,114.64-1,202,420,402.73-480,178,538.64

Finding the Fourth Proportional to 871,319,114.64, 1,202,420,402.73 and 480,178,538.64

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Solution

The fourth proportional to 871,319,114.64, 1,202,420,402.73 and 480,178,538.64 is: 662,646,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,319,114.64 : 1,202,420,402.73 = 480,178,538.64 : x
  2. Step 2: Convert to fraction form
    871,319,114.64/1,202,420,402.73 = 480,178,538.64/x
  3. Step 3: Cross multiply
    871,319,114.64x = 1,202,420,402.73 × 480,178,538.64
  4. Step 4: Simplify right side
    871,319,114.64x = 577,376,471,813,811,712
  5. Step 5: Solve for x
    x = 577,376,471,813,811,712/871,319,114.64
  6. Step 6: Final answer
    x = 662,646,396.84

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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.