Home / 30,987,425.51-46,486,812.32-12,781,688.93

Finding the Fourth Proportional to 30,987,425.51, 46,486,812.32 and 12,781,688.93

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Solution

The fourth proportional to 30,987,425.51, 46,486,812.32 and 12,781,688.93 is: 19,174,873.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987,425.51 : 46,486,812.32 = 12,781,688.93 : x
  2. Step 2: Convert to fraction form
    30,987,425.51/46,486,812.32 = 12,781,688.93/x
  3. Step 3: Cross multiply
    30,987,425.51x = 46,486,812.32 × 12,781,688.93
  4. Step 4: Simplify right side
    30,987,425.51x = 594,179,974,125,189.12
  5. Step 5: Solve for x
    x = 594,179,974,125,189.12/30,987,425.51
  6. Step 6: Final answer
    x = 19,174,873.82

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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.