Home / 19,890,999.10-29,836,498.65-7,111,920.70

Finding the Fourth Proportional to 19,890,999.10, 29,836,498.65 and 7,111,920.70

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Solution

The fourth proportional to 19,890,999.10, 29,836,498.65 and 7,111,920.70 is: 10,667,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890,999.10 : 29,836,498.65 = 7,111,920.70 : x
  2. Step 2: Convert to fraction form
    19,890,999.10/29,836,498.65 = 7,111,920.70/x
  3. Step 3: Cross multiply
    19,890,999.10x = 29,836,498.65 × 7,111,920.70
  4. Step 4: Simplify right side
    19,890,999.10x = 212,194,812,364,457.06
  5. Step 5: Solve for x
    x = 212,194,812,364,457.06/19,890,999.10
  6. Step 6: Final answer
    x = 10,667,881.05

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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.