Home / 76,128,017.12-105,056,768.88-41,320,714.40

Finding the Fourth Proportional to 76,128,017.12, 105,056,768.88 and 41,320,714.40

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Solution

The fourth proportional to 76,128,017.12, 105,056,768.88 and 41,320,714.40 is: 57,022,643.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128,017.12 : 105,056,768.88 = 41,320,714.40 : x
  2. Step 2: Convert to fraction form
    76,128,017.12/105,056,768.88 = 41,320,714.40/x
  3. Step 3: Cross multiply
    76,128,017.12x = 105,056,768.88 × 41,320,714.40
  4. Step 4: Simplify right side
    76,128,017.12x = 4,341,020,742,677,287.50
  5. Step 5: Solve for x
    x = 4,341,020,742,677,287.50/76,128,017.12
  6. Step 6: Final answer
    x = 57,022,643.00

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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.