Home / 1,319,055,380.24-1,978,646,700.36-433,721,138.42

Finding the Fourth Proportional to 1,319,055,380.24, 1,978,646,700.36 and 433,721,138.42

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Solution

The fourth proportional to 1,319,055,380.24, 1,978,646,700.36 and 433,721,138.42 is: 650,602,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,055,380.24 : 1,978,646,700.36 = 433,721,138.42 : x
  2. Step 2: Convert to fraction form
    1,319,055,380.24/1,978,646,700.36 = 433,721,138.42/x
  3. Step 3: Cross multiply
    1,319,055,380.24x = 1,978,646,700.36 × 433,721,138.42
  4. Step 4: Simplify right side
    1,319,055,380.24x = 858,180,899,411,115,776
  5. Step 5: Solve for x
    x = 858,180,899,411,115,776/1,319,055,380.24
  6. Step 6: Final answer
    x = 650,602,629.93

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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.