Home / 120,836,015.10-181,254,022.65-108,742,779.90

Finding the Fourth Proportional to 120,836,015.10, 181,254,022.65 and 108,742,779.90

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Solution

The fourth proportional to 120,836,015.10, 181,254,022.65 and 108,742,779.90 is: 163,114,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,836,015.10 : 181,254,022.65 = 108,742,779.90 : x
  2. Step 2: Convert to fraction form
    120,836,015.10/181,254,022.65 = 108,742,779.90/x
  3. Step 3: Cross multiply
    120,836,015.10x = 181,254,022.65 × 108,742,779.90
  4. Step 4: Simplify right side
    120,836,015.10x = 19,710,066,291,018,568
  5. Step 5: Solve for x
    x = 19,710,066,291,018,568/120,836,015.10
  6. Step 6: Final answer
    x = 163,114,169.85

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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.