Home / 31,475,172.52-47,179,678.38-14,421,821.32

Finding the Fourth Proportional to 31,475,172.52, 47,179,678.38 and 14,421,821.32

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Solution

The fourth proportional to 31,475,172.52, 47,179,678.38 and 14,421,821.32 is: 21,617,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475,172.52 : 47,179,678.38 = 14,421,821.32 : x
  2. Step 2: Convert to fraction form
    31,475,172.52/47,179,678.38 = 14,421,821.32/x
  3. Step 3: Cross multiply
    31,475,172.52x = 47,179,678.38 × 14,421,821.32
  4. Step 4: Simplify right side
    31,475,172.52x = 680,416,891,531,427.12
  5. Step 5: Solve for x
    x = 680,416,891,531,427.12/31,475,172.52
  6. Step 6: Final answer
    x = 21,617,574.65

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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.