Home / 30,732,105.84-42,409,690.20-16,980,716.40

Finding the Fourth Proportional to 30,732,105.84, 42,409,690.20 and 16,980,716.40

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Solution

The fourth proportional to 30,732,105.84, 42,409,690.20 and 16,980,716.40 is: 23,433,048.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732,105.84 : 42,409,690.20 = 16,980,716.40 : x
  2. Step 2: Convert to fraction form
    30,732,105.84/42,409,690.20 = 16,980,716.40/x
  3. Step 3: Cross multiply
    30,732,105.84x = 42,409,690.20 × 16,980,716.40
  4. Step 4: Simplify right side
    30,732,105.84x = 720,146,921,898,059.25
  5. Step 5: Solve for x
    x = 720,146,921,898,059.25/30,732,105.84
  6. Step 6: Final answer
    x = 23,433,048.35

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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.