Home / 55,539,734.74-76,642,714.65-30,421,441.78

Finding the Fourth Proportional to 55,539,734.74, 76,642,714.65 and 30,421,441.78

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Solution

The fourth proportional to 55,539,734.74, 76,642,714.65 and 30,421,441.78 is: 41,980,428.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,539,734.74 : 76,642,714.65 = 30,421,441.78 : x
  2. Step 2: Convert to fraction form
    55,539,734.74/76,642,714.65 = 30,421,441.78/x
  3. Step 3: Cross multiply
    55,539,734.74x = 76,642,714.65 × 30,421,441.78
  4. Step 4: Simplify right side
    55,539,734.74x = 2,331,581,881,586,128.50
  5. Step 5: Solve for x
    x = 2,331,581,881,586,128.50/55,539,734.74
  6. Step 6: Final answer
    x = 41,980,428.83

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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.