Home / 28,772,035.92-43,128,973.28-12,388,007.36

Finding the Fourth Proportional to 28,772,035.92, 43,128,973.28 and 12,388,007.36

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Solution

The fourth proportional to 28,772,035.92, 43,128,973.28 and 12,388,007.36 is: 18,569,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772,035.92 : 43,128,973.28 = 12,388,007.36 : x
  2. Step 2: Convert to fraction form
    28,772,035.92/43,128,973.28 = 12,388,007.36/x
  3. Step 3: Cross multiply
    28,772,035.92x = 43,128,973.28 × 12,388,007.36
  4. Step 4: Simplify right side
    28,772,035.92x = 534,282,038,421,883.31
  5. Step 5: Solve for x
    x = 534,282,038,421,883.31/28,772,035.92
  6. Step 6: Final answer
    x = 18,569,490.18

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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.