Home / 72,833,985.54-100,509,726.96-39,793,525.02

Finding the Fourth Proportional to 72,833,985.54, 100,509,726.96 and 39,793,525.02

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Solution

The fourth proportional to 72,833,985.54, 100,509,726.96 and 39,793,525.02 is: 54,914,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,833,985.54 : 100,509,726.96 = 39,793,525.02 : x
  2. Step 2: Convert to fraction form
    72,833,985.54/100,509,726.96 = 39,793,525.02/x
  3. Step 3: Cross multiply
    72,833,985.54x = 100,509,726.96 × 39,793,525.02
  4. Step 4: Simplify right side
    72,833,985.54x = 3,999,636,334,536,128.50
  5. Step 5: Solve for x
    x = 3,999,636,334,536,128.50/72,833,985.54
  6. Step 6: Final answer
    x = 54,914,423.60

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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.