Home / 70,985,720.07-97,960,359.06-38,390,672.07

Finding the Fourth Proportional to 70,985,720.07, 97,960,359.06 and 38,390,672.07

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Solution

The fourth proportional to 70,985,720.07, 97,960,359.06 and 38,390,672.07 is: 52,979,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,985,720.07 : 97,960,359.06 = 38,390,672.07 : x
  2. Step 2: Convert to fraction form
    70,985,720.07/97,960,359.06 = 38,390,672.07/x
  3. Step 3: Cross multiply
    70,985,720.07x = 97,960,359.06 × 38,390,672.07
  4. Step 4: Simplify right side
    70,985,720.07x = 3,760,764,020,531,913.50
  5. Step 5: Solve for x
    x = 3,760,764,020,531,913.50/70,985,720.07
  6. Step 6: Final answer
    x = 52,979,162.81

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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.