Home / 207,638,117.40-311,457,176.10-197,560,421.40

Finding the Fourth Proportional to 207,638,117.40, 311,457,176.10 and 197,560,421.40

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Solution

The fourth proportional to 207,638,117.40, 311,457,176.10 and 197,560,421.40 is: 296,340,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,638,117.40 : 311,457,176.10 = 197,560,421.40 : x
  2. Step 2: Convert to fraction form
    207,638,117.40/311,457,176.10 = 197,560,421.40/x
  3. Step 3: Cross multiply
    207,638,117.40x = 311,457,176.10 × 197,560,421.40
  4. Step 4: Simplify right side
    207,638,117.40x = 61,531,610,958,370,016
  5. Step 5: Solve for x
    x = 61,531,610,958,370,016/207,638,117.40
  6. Step 6: Final answer
    x = 296,340,632.10

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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.