Home / 112,333,021.80-168,499,532.70-99,578,437.80

Finding the Fourth Proportional to 112,333,021.80, 168,499,532.70 and 99,578,437.80

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Solution

The fourth proportional to 112,333,021.80, 168,499,532.70 and 99,578,437.80 is: 149,367,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,333,021.80 : 168,499,532.70 = 99,578,437.80 : x
  2. Step 2: Convert to fraction form
    112,333,021.80/168,499,532.70 = 99,578,437.80/x
  3. Step 3: Cross multiply
    112,333,021.80x = 168,499,532.70 × 99,578,437.80
  4. Step 4: Simplify right side
    112,333,021.80x = 16,778,920,236,296,014
  5. Step 5: Solve for x
    x = 16,778,920,236,296,014/112,333,021.80
  6. Step 6: Final answer
    x = 149,367,656.70

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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.