Home / 124,341,642.80-186,512,464.20-78,992,010.80

Finding the Fourth Proportional to 124,341,642.80, 186,512,464.20 and 78,992,010.80

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Solution

The fourth proportional to 124,341,642.80, 186,512,464.20 and 78,992,010.80 is: 118,488,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,341,642.80 : 186,512,464.20 = 78,992,010.80 : x
  2. Step 2: Convert to fraction form
    124,341,642.80/186,512,464.20 = 78,992,010.80/x
  3. Step 3: Cross multiply
    124,341,642.80x = 186,512,464.20 × 78,992,010.80
  4. Step 4: Simplify right side
    124,341,642.80x = 14,732,994,586,421,012
  5. Step 5: Solve for x
    x = 14,732,994,586,421,012/124,341,642.80
  6. Step 6: Final answer
    x = 118,488,016.20

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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.