Home / 120,686,148.80-181,029,223.20-39,907,116.80

Finding the Fourth Proportional to 120,686,148.80, 181,029,223.20 and 39,907,116.80

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Solution

The fourth proportional to 120,686,148.80, 181,029,223.20 and 39,907,116.80 is: 59,860,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,686,148.80 : 181,029,223.20 = 39,907,116.80 : x
  2. Step 2: Convert to fraction form
    120,686,148.80/181,029,223.20 = 39,907,116.80/x
  3. Step 3: Cross multiply
    120,686,148.80x = 181,029,223.20 × 39,907,116.80
  4. Step 4: Simplify right side
    120,686,148.80x = 7,224,354,354,455,669
  5. Step 5: Solve for x
    x = 7,224,354,354,455,669/120,686,148.80
  6. Step 6: Final answer
    x = 59,860,675.20

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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.