Home / 30,636,434.40-42,278,536.80-16,885,433.76

Finding the Fourth Proportional to 30,636,434.40, 42,278,536.80 and 16,885,433.76

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Solution

The fourth proportional to 30,636,434.40, 42,278,536.80 and 16,885,433.76 is: 23,302,040.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636,434.40 : 42,278,536.80 = 16,885,433.76 : x
  2. Step 2: Convert to fraction form
    30,636,434.40/42,278,536.80 = 16,885,433.76/x
  3. Step 3: Cross multiply
    30,636,434.40x = 42,278,536.80 × 16,885,433.76
  4. Step 4: Simplify right side
    30,636,434.40x = 713,891,432,606,122.38
  5. Step 5: Solve for x
    x = 713,891,432,606,122.38/30,636,434.40
  6. Step 6: Final answer
    x = 23,302,040.42

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1.5x scale

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.