Home / 31,186,299.36-46,742,712.42-12,730,718.40

Finding the Fourth Proportional to 31,186,299.36, 46,742,712.42 and 12,730,718.40

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Solution

The fourth proportional to 31,186,299.36, 46,742,712.42 and 12,730,718.40 is: 19,081,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186,299.36 : 46,742,712.42 = 12,730,718.40 : x
  2. Step 2: Convert to fraction form
    31,186,299.36/46,742,712.42 = 12,730,718.40/x
  3. Step 3: Cross multiply
    31,186,299.36x = 46,742,712.42 × 12,730,718.40
  4. Step 4: Simplify right side
    31,186,299.36x = 595,068,309,071,202.62
  5. Step 5: Solve for x
    x = 595,068,309,071,202.62/31,186,299.36
  6. Step 6: Final answer
    x = 19,081,081.16

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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.