Home / 72,654,741.84-100,287,840-43,295,284.32

Finding the Fourth Proportional to 72,654,741.84, 100,287,840 and 43,295,284.32

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Solution

The fourth proportional to 72,654,741.84, 100,287,840 and 43,295,284.32 is: 59,761,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654,741.84 : 100,287,840 = 43,295,284.32 : x
  2. Step 2: Convert to fraction form
    72,654,741.84/100,287,840 = 43,295,284.32/x
  3. Step 3: Cross multiply
    72,654,741.84x = 100,287,840 × 43,295,284.32
  4. Step 4: Simplify right side
    72,654,741.84x = 4,341,990,546,638,669
  5. Step 5: Solve for x
    x = 4,341,990,546,638,669/72,654,741.84
  6. Step 6: Final answer
    x = 59,761,970.61

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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.