Home / 31,105,897.80-46,658,846.70-28,129,828.20

Finding the Fourth Proportional to 31,105,897.80, 46,658,846.70 and 28,129,828.20

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Solution

The fourth proportional to 31,105,897.80, 46,658,846.70 and 28,129,828.20 is: 42,194,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,105,897.80 : 46,658,846.70 = 28,129,828.20 : x
  2. Step 2: Convert to fraction form
    31,105,897.80/46,658,846.70 = 28,129,828.20/x
  3. Step 3: Cross multiply
    31,105,897.80x = 46,658,846.70 × 28,129,828.20
  4. Step 4: Simplify right side
    31,105,897.80x = 1,312,505,341,681,137
  5. Step 5: Solve for x
    x = 1,312,505,341,681,137/31,105,897.80
  6. Step 6: Final answer
    x = 42,194,742.30

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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.