Home / 130,850,565.12-180,575,032.32-72,115,361.28

Finding the Fourth Proportional to 130,850,565.12, 180,575,032.32 and 72,115,361.28

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Solution

The fourth proportional to 130,850,565.12, 180,575,032.32 and 72,115,361.28 is: 99,519,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,850,565.12 : 180,575,032.32 = 72,115,361.28 : x
  2. Step 2: Convert to fraction form
    130,850,565.12/180,575,032.32 = 72,115,361.28/x
  3. Step 3: Cross multiply
    130,850,565.12x = 180,575,032.32 × 72,115,361.28
  4. Step 4: Simplify right side
    130,850,565.12x = 13,022,233,693,904,476
  5. Step 5: Solve for x
    x = 13,022,233,693,904,476/130,850,565.12
  6. Step 6: Final answer
    x = 99,519,888.83

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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.