Home / 12,964,465.99-17,890,926.33-7,163,206.40

Finding the Fourth Proportional to 12,964,465.99, 17,890,926.33 and 7,163,206.40

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Solution

The fourth proportional to 12,964,465.99, 17,890,926.33 and 7,163,206.40 is: 9,885,204.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964,465.99 : 17,890,926.33 = 7,163,206.40 : x
  2. Step 2: Convert to fraction form
    12,964,465.99/17,890,926.33 = 7,163,206.40/x
  3. Step 3: Cross multiply
    12,964,465.99x = 17,890,926.33 × 7,163,206.40
  4. Step 4: Simplify right side
    12,964,465.99x = 128,156,397,959,937.38
  5. Step 5: Solve for x
    x = 128,156,397,959,937.38/12,964,465.99
  6. Step 6: Final answer
    x = 9,885,204.54

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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.