Home / 288,146,856.51-397,642,577.75-155,987,754.98

Finding the Fourth Proportional to 288,146,856.51, 397,642,577.75 and 155,987,754.98

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Solution

The fourth proportional to 288,146,856.51, 397,642,577.75 and 155,987,754.98 is: 215,263,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,146,856.51 : 397,642,577.75 = 155,987,754.98 : x
  2. Step 2: Convert to fraction form
    288,146,856.51/397,642,577.75 = 155,987,754.98/x
  3. Step 3: Cross multiply
    288,146,856.51x = 397,642,577.75 × 155,987,754.98
  4. Step 4: Simplify right side
    288,146,856.51x = 62,027,372,984,914,448
  5. Step 5: Solve for x
    x = 62,027,372,984,914,448/288,146,856.51
  6. Step 6: Final answer
    x = 215,263,056.26

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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.