Home / 19,411,490-26,787,856.20-10,826,786

Finding the Fourth Proportional to 19,411,490, 26,787,856.20 and 10,826,786

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Solution

The fourth proportional to 19,411,490, 26,787,856.20 and 10,826,786 is: 14,940,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411,490 : 26,787,856.20 = 10,826,786 : x
  2. Step 2: Convert to fraction form
    19,411,490/26,787,856.20 = 10,826,786/x
  3. Step 3: Cross multiply
    19,411,490x = 26,787,856.20 × 10,826,786
  4. Step 4: Simplify right side
    19,411,490x = 290,026,386,476,173.19
  5. Step 5: Solve for x
    x = 290,026,386,476,173.19/19,411,490
  6. Step 6: Final answer
    x = 14,940,964.68

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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.