Home / 70,985,721.57-97,960,361.13-38,390,673.57

Finding the Fourth Proportional to 70,985,721.57, 97,960,361.13 and 38,390,673.57

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Solution

The fourth proportional to 70,985,721.57, 97,960,361.13 and 38,390,673.57 is: 52,979,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,985,721.57 : 97,960,361.13 = 38,390,673.57 : x
  2. Step 2: Convert to fraction form
    70,985,721.57/97,960,361.13 = 38,390,673.57/x
  3. Step 3: Cross multiply
    70,985,721.57x = 97,960,361.13 × 38,390,673.57
  4. Step 4: Simplify right side
    70,985,721.57x = 3,760,764,246,941,146
  5. Step 5: Solve for x
    x = 3,760,764,246,941,146/70,985,721.57
  6. Step 6: Final answer
    x = 52,979,164.88

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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.