Home / 15,571,838.31-21,333,063.71-14,989,632.18

Finding the Fourth Proportional to 15,571,838.31, 21,333,063.71 and 14,989,632.18

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Solution

The fourth proportional to 15,571,838.31, 21,333,063.71 and 14,989,632.18 is: 20,535,454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571,838.31 : 21,333,063.71 = 14,989,632.18 : x
  2. Step 2: Convert to fraction form
    15,571,838.31/21,333,063.71 = 14,989,632.18/x
  3. Step 3: Cross multiply
    15,571,838.31x = 21,333,063.71 × 14,989,632.18
  4. Step 4: Simplify right side
    15,571,838.31x = 319,774,778,285,406.19
  5. Step 5: Solve for x
    x = 319,774,778,285,406.19/15,571,838.31
  6. Step 6: Final answer
    x = 20,535,454.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.