Home / 12,303,916.80-18,455,875.20-11,706,045.68

Finding the Fourth Proportional to 12,303,916.80, 18,455,875.20 and 11,706,045.68

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Solution

The fourth proportional to 12,303,916.80, 18,455,875.20 and 11,706,045.68 is: 17,559,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303,916.80 : 18,455,875.20 = 11,706,045.68 : x
  2. Step 2: Convert to fraction form
    12,303,916.80/18,455,875.20 = 11,706,045.68/x
  3. Step 3: Cross multiply
    12,303,916.80x = 18,455,875.20 × 11,706,045.68
  4. Step 4: Simplify right side
    12,303,916.80x = 216,045,318,155,579.12
  5. Step 5: Solve for x
    x = 216,045,318,155,579.12/12,303,916.80
  6. Step 6: Final answer
    x = 17,559,068.52

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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.