Home / 31,065,528.90-42,860,929.63-18,010,182.28

Finding the Fourth Proportional to 31,065,528.90, 42,860,929.63 and 18,010,182.28

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Solution

The fourth proportional to 31,065,528.90, 42,860,929.63 and 18,010,182.28 is: 24,848,543.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,065,528.90 : 42,860,929.63 = 18,010,182.28 : x
  2. Step 2: Convert to fraction form
    31,065,528.90/42,860,929.63 = 18,010,182.28/x
  3. Step 3: Cross multiply
    31,065,528.90x = 42,860,929.63 × 18,010,182.28
  4. Step 4: Simplify right side
    31,065,528.90x = 771,933,155,326,553
  5. Step 5: Solve for x
    x = 771,933,155,326,553/31,065,528.90
  6. Step 6: Final answer
    x = 24,848,543.79

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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.