Home / 66,254,878.28-91,430,865.96-38,381,388.32

Finding the Fourth Proportional to 66,254,878.28, 91,430,865.96 and 38,381,388.32

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Solution

The fourth proportional to 66,254,878.28, 91,430,865.96 and 38,381,388.32 is: 52,965,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254,878.28 : 91,430,865.96 = 38,381,388.32 : x
  2. Step 2: Convert to fraction form
    66,254,878.28/91,430,865.96 = 38,381,388.32/x
  3. Step 3: Cross multiply
    66,254,878.28x = 91,430,865.96 × 38,381,388.32
  4. Step 4: Simplify right side
    66,254,878.28x = 3,509,243,570,387,475
  5. Step 5: Solve for x
    x = 3,509,243,570,387,475/66,254,878.28
  6. Step 6: Final answer
    x = 52,965,814.17

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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.