Home / 209,933,020-314,898,406.08-54,486,714.32

Finding the Fourth Proportional to 209,933,020, 314,898,406.08 and 54,486,714.32

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Solution

The fourth proportional to 209,933,020, 314,898,406.08 and 54,486,714.32 is: 81,729,779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,933,020 : 314,898,406.08 = 54,486,714.32 : x
  2. Step 2: Convert to fraction form
    209,933,020/314,898,406.08 = 54,486,714.32/x
  3. Step 3: Cross multiply
    209,933,020x = 314,898,406.08 × 54,486,714.32
  4. Step 4: Simplify right side
    209,933,020x = 17,157,779,491,904,310
  5. Step 5: Solve for x
    x = 17,157,779,491,904,310/209,933,020
  6. Step 6: Final answer
    x = 81,729,779.77

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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.