Home / 119,624,689.22-165,112,784.03-77,912,694.32

Finding the Fourth Proportional to 119,624,689.22, 165,112,784.03 and 77,912,694.32

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Solution

The fourth proportional to 119,624,689.22, 165,112,784.03 and 77,912,694.32 is: 107,539,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,624,689.22 : 165,112,784.03 = 77,912,694.32 : x
  2. Step 2: Convert to fraction form
    119,624,689.22/165,112,784.03 = 77,912,694.32/x
  3. Step 3: Cross multiply
    119,624,689.22x = 165,112,784.03 × 77,912,694.32
  4. Step 4: Simplify right side
    119,624,689.22x = 12,864,381,869,822,786
  5. Step 5: Solve for x
    x = 12,864,381,869,822,786/119,624,689.22
  6. Step 6: Final answer
    x = 107,539,521.77

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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.