Home / 219,956,690.70-330,121,040.40-90,657,095.40

Finding the Fourth Proportional to 219,956,690.70, 330,121,040.40 and 90,657,095.40

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Solution

The fourth proportional to 219,956,690.70, 330,121,040.40 and 90,657,095.40 is: 136,062,306.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,956,690.70 : 330,121,040.40 = 90,657,095.40 : x
  2. Step 2: Convert to fraction form
    219,956,690.70/330,121,040.40 = 90,657,095.40/x
  3. Step 3: Cross multiply
    219,956,690.70x = 330,121,040.40 × 90,657,095.40
  4. Step 4: Simplify right side
    219,956,690.70x = 29,927,814,653,090,052
  5. Step 5: Solve for x
    x = 29,927,814,653,090,052/219,956,690.70
  6. Step 6: Final answer
    x = 136,062,306.44

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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.