Home / 72,183,878.58-99,613,779.39-39,144,119.01

Finding the Fourth Proportional to 72,183,878.58, 99,613,779.39 and 39,144,119.01

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Solution

The fourth proportional to 72,183,878.58, 99,613,779.39 and 39,144,119.01 is: 54,018,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183,878.58 : 99,613,779.39 = 39,144,119.01 : x
  2. Step 2: Convert to fraction form
    72,183,878.58/99,613,779.39 = 39,144,119.01/x
  3. Step 3: Cross multiply
    72,183,878.58x = 99,613,779.39 × 39,144,119.01
  4. Step 4: Simplify right side
    72,183,878.58x = 3,899,293,635,478,045
  5. Step 5: Solve for x
    x = 3,899,293,635,478,045/72,183,878.58
  6. Step 6: Final answer
    x = 54,018,898.85

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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.