Home / 872,940,779.01-1,309,989,486.62-479,742,192.41

Finding the Fourth Proportional to 872,940,779.01, 1,309,989,486.62 and 479,742,192.41

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Solution

The fourth proportional to 872,940,779.01, 1,309,989,486.62 and 479,742,192.41 is: 719,931,114.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,940,779.01 : 1,309,989,486.62 = 479,742,192.41 : x
  2. Step 2: Convert to fraction form
    872,940,779.01/1,309,989,486.62 = 479,742,192.41/x
  3. Step 3: Cross multiply
    872,940,779.01x = 1,309,989,486.62 × 479,742,192.41
  4. Step 4: Simplify right side
    872,940,779.01x = 628,457,228,339,778,560
  5. Step 5: Solve for x
    x = 628,457,228,339,778,560/872,940,779.01
  6. Step 6: Final answer
    x = 719,931,114.97

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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.