Home / 545,424,557.34-815,148,247.02-398,182,187.88

Finding the Fourth Proportional to 545,424,557.34, 815,148,247.02 and 398,182,187.88

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Solution

The fourth proportional to 545,424,557.34, 815,148,247.02 and 398,182,187.88 is: 595,091,489.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,424,557.34 : 815,148,247.02 = 398,182,187.88 : x
  2. Step 2: Convert to fraction form
    545,424,557.34/815,148,247.02 = 398,182,187.88/x
  3. Step 3: Cross multiply
    545,424,557.34x = 815,148,247.02 × 398,182,187.88
  4. Step 4: Simplify right side
    545,424,557.34x = 324,577,512,444,970,304
  5. Step 5: Solve for x
    x = 324,577,512,444,970,304/545,424,557.34
  6. Step 6: Final answer
    x = 595,091,489.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.