Home / 31,065,555.67-42,860,967.02-18,010,209.36

Finding the Fourth Proportional to 31,065,555.67, 42,860,967.02 and 18,010,209.36

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Solution

The fourth proportional to 31,065,555.67, 42,860,967.02 and 18,010,209.36 is: 24,848,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,065,555.67 : 42,860,967.02 = 18,010,209.36 : x
  2. Step 2: Convert to fraction form
    31,065,555.67/42,860,967.02 = 18,010,209.36/x
  3. Step 3: Cross multiply
    31,065,555.67x = 42,860,967.02 × 18,010,209.36
  4. Step 4: Simplify right side
    31,065,555.67x = 771,934,989,340,128.50
  5. Step 5: Solve for x
    x = 771,934,989,340,128.50/31,065,555.67
  6. Step 6: Final answer
    x = 24,848,581.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.