Home / 13,013,355.77-19,403,690.91-12,655,824.17

Finding the Fourth Proportional to 13,013,355.77, 19,403,690.91 and 12,655,824.17

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Solution

The fourth proportional to 13,013,355.77, 19,403,690.91 and 12,655,824.17 is: 18,870,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,355.77 : 19,403,690.91 = 12,655,824.17 : x
  2. Step 2: Convert to fraction form
    13,013,355.77/19,403,690.91 = 12,655,824.17/x
  3. Step 3: Cross multiply
    13,013,355.77x = 19,403,690.91 × 12,655,824.17
  4. Step 4: Simplify right side
    13,013,355.77x = 245,569,700,308,968.81
  5. Step 5: Solve for x
    x = 245,569,700,308,968.81/13,013,355.77
  6. Step 6: Final answer
    x = 18,870,589.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.